A/N: Some later Chapters may contain adult content!

Welcome to my story. As we await the next season of Chicago PD it has been incredible to read up on all the wonderful fanfic's out here and it inspired me to write something of my own. This is based loosely around the plot of season 7 of Chicago PD, including characters and storylines from Chicago Fire and Med. I tried introducing another department into the One Chicago World by making my character work with social services. I hope you all enjoy and let me know what you think! I took my liberties changing timelines and weather and probably the season this was all supposed to happen in on TV as I always find it very confusing to keep track with that on the series. But anyway, I think these are minor details. Let's just begin:

Chapter Title "Bad Behavior" by Kat Frankie

DISCLAIMER: I do not own any of the Chicago Universe characters, only my OCs!

"Like I told you the first time you called me, which was hardly an hour ago: I try my best to get down there myself as soon as I can or I will send someone else, but there are only so many things I can do at the same time," Rianne started to get a little annoyed by the person on the other end of the line, acting like she only answered to him and him only.

And he would not stop nagging... Did people have any clue what her day looked like in a city like Chicago?

"I get that it's urgent, I've been on the job for some time now!"

He obviously didn't get that. She considered just hanging up without a goodbye, but advised herself against it. The situation was already tense enough as it was and if she had to get over there today and meet up in person, some restraint would maybe help make things less hostile.

"Okay, I'll see what I can do. See you later," (or preferably someone else, she added in her mind).

Trying not to let the menacing tone of his voice get to her, Rianne hung up and slumped down in her chair, sighing deeply and frantically pushed her unruly hair, which had a tendency to escape her makeshift bun, out of her face.

Nate surfaced behind a file he'd been reading until now, having tried to keep himself from interrupting his colleague's conversation on the phone with an all too amused comment on yet another one of these catfights. His amber eyes were twinkling with mischief:

"Let me guess: Someone from our busiest district, and I think not the officer I am related to, has the most important case in the world – again – and wants you at the station 'toute suite'? If only I knew what his name was again..."

"Save it Nate – one of these days I'm going to kill him and you're going to help me get rid of the body. How can he be so full of himself? Maybe they should get themselves an exclusive right to a social worker out of our department."

"Oh – and would you like to be that social worker?"

"No way! I wouldn't last a day working with him. I am not his damn puppet."

Nate chuckled at the image of Rianne answering to her least favorite detective of district 21 and failing big time.

"Do you want to go and take this case they have? I am actually pretty swamped here…" she batted her eyes at him, even though she knew it was in vain.

Nate flashed her a signature dimpled smile, showing all of his perfectly white and straight teeth:

"I would honey, but I can't. I'm up for mandatory First Aid training, starts in 10 minutes. I guess you're on your own. Besides this isn't really my scene as you well know. I am not the one with the special psychological skills and I am not even working in this department. "

"Traitor!"

Nate just shrugged his shoulders, winked at her and she threw a pen at him, Nate ducked just in time. He then stood up from the visitor's chair he'd been occupying, ran a hand through his shock of blonde hair and left the building with a casual:

"See you at home."

He even had the audacity to blow her a kiss, just because he loved riling her up even more.

Nate was a case-worker with social services. His office was in the same building as hers, but on a different floor. He was mostly working with deviant teens, while she was working with younger children and foster families. But every chance he got he checked in on Rianne to chat and have a cup of coffee, consult on cases. Generally they just loved being around each other.
Sighing Rianne also got up. Pacing the room while making some calls, frantically trying to reschedule her appointments for today for the seemingly pressing matter at the police station, she hoped she would not receive a third call about it or hear from her superiors.
These rows with said detective had a tendency to bite people in the ass. She hoped it was as important as he made it out to be.

Rianne then left the office, got into her vintage VW van and drove to the nearest coffee-joint. First things first!
No way she was going to drink the crappy stuff they served at the district. By the looks of it, it was going to be a long afternoon and she couldn't face it without her caffeine reserves loaded to full capacity.

Outside of 21 there was a busy come-and-go as always. Police officers starting or ending their shifts, civilians on their way to interviews, complaints, offenders being brought in for interrogations or getting booked.
Rianne knew the drill around here. Clutching her hot beverage, she hurried inside after having parked her van across the street. It had begun to rain lightly.

"Hey kiddo, good to see you!"

Rianne was scooped up in a bear hug from a tall and scruffy man as she was headed for the front-desk, wondering why she couldn't see Sergeant Platt anywhere. That woman was always a welcome refreshment of witty comes backs and snarky remarks.

"Why d'you keep calling me kiddo? I'm kind of your age Adam!" After quickly recovering from the first shock she hugged the man back as best as she could and smiled for the first time in the last two hours.

Her small frame in comparison to his was a funny sight to see. Adam had been working out more over the last few months, so that her arms barely reached all the way around him. He almost lifted her up off the ground with his strength.

"I do it because you're like the second sister I never had and you get so adorably defensive all the time," he stepped away, releasing her, so that she had a chance to see Kevin Atwater standing right behind him, giving her a small wave:

"Good to see you too Adam, Kevin," she nodded in the direction of the latter, then focused on Adam again, happy to see him smiling at her. His attitude eased a bit of her tension:

"Especially good to see you back on the job!"

Adam had just last week been cleared of any charges about a case he'd been involved in.

He had been trying to help his former colleague Antonio Dawson, covering up that the latter had been high on oxy when he accidentally killed the kidnapper of his daughter in an altercation. Adam had stated that he himself had been responsible for killing the suspect on scene. A bunch of lies and false statements had followed, but eventually they had caught up to him.

Adam just nodded humbly. Rianne knew how hard it had been on him to be suspended, probably facing jail time and never be able to work as a police officer again. Everybody had been worried about him. Adam would have been unable to come back from this, if the worst-case-scenario had come true. Rianne had first hand witnessed several emotional meltdowns of the otherwise tough and good-humored man throughout this ordeal.
Nate had often been trying to console him in their living room, keeping his cousin from drinking himself into oblivion every day and give him some perspective and hope. Adam had set out to be a police officer and as he claimed it was all he really knew to do with his life.

"By the way, you should really get rid of all that facial hair Adam, you look like your grandpa."

She liked it better when he kept that beard in check, but the woodchopper look seemed to be all the hype now.
He laughed out loud, as did Atwater, and punched her shoulder playfully. Maybe she could just deal with them concerning the call? But no such luck. Before she could ask Adam about it, he beat her to it:

"Glad you finally made it down to us to comment on that. Seriously though: Jay's climbing the walls upstairs, desperately awaiting your arrival," he continued smiling, while Rianne's grin that he'd put there seconds ago, vanished instantly.

"What is it with him? I got here as soon as humanly possible, where's the fire?" She scoffed angrily, not feeling the least bit guilty that she had taken her sweet time to get her coffee first.

"I think he doesn't like to play babysitter and would rather get on with doing real police-work."

"I don't understand. Normally you just place children that are waiting on their relatives or DCFS to pick them up with Platt and she takes care of them."

"Yeah, but this is different. Also Platt's on furlough and I doubt that she would have been down to take care of these kids. You will see for yourself once you get that sweet ass upstairs. Also Voight ordered Jay to keep an eye on the kids until someone from social services takes care of it, because he is still pissed at him for always disagreeing with his decisions over the last few weeks. So you can guess: he's adamant to see you."

Adam knew she was not liking this but put his best grin on nonetheless.
This was just getting better and better, Rianne thought:

"Doesn't rectify that he has been practically harassing me for the last hour and a half. Can you buzz me up?"

She braced herself for the encounter that was inevitable right now.
At least judging from what Adam had just told her she wasn't the only one who went head to head with Jay Halstead from time to time.

"Sure thing."

They went up the stairs where there was an extra gateway, hand scanner and whatnot for the Intelligence Unit.
Rianne had had the privilege to have been up here other times before, even though mostly she dealt with Sergeant Platt downstairs.
But every time up here felt important and kind of like belonging to a secret circle. On her way she could already hear raised voices.
One very well known to her as she had been on the receiving end of that tone half an hour ago, the other much younger and female. In between there was a young kid bawling her or his eyes out. That didn't sound good.
Adam quickly excused himself because he had to follow up on another case, which he didn't seem to mind at all, and left her on her own:

"Just follow the noise and breaking of stuff and say hi to Nate for me!"

Rianne sighed for the hundredth time today and walked in the direction of the commotion that seemed to come from the break-room. It was situated near the office of their Sergeant Hank Voight, a well respected and sometimes feared leader.
Everybody else had cleared out. Rianne passed empty desks and the door to Voight's office was wide open, no one to be seen.

"Just calm down already!"

She heard more yelling from the break-room, but when she wanted to enter it to see what was going on in there, she found the door locked and had to knock, which was odd. The shouting stopped for a second and a very distressed looking Jay Halstead opened her, just the one member of Intelligence she'd dreaded to find here.
His tense face didn't give anything away, but his piercing emerald eyes sparked with barely contained impatience and anger.
Slightly towering over her with his 5 feet 10 1/4, although she was wearing her highest wedges, he could come across as intimidating, especially as he still used that annoyed tone with her:

"So glad you could join the party!" He gestured for her to enter the room.

Rianne decided to ignore his attitude and see what they were dealing with.
Inside she found a very upset and angry girl, approximately 12 years old, standing in the middle of the room, ready to pounce on anyone who came near her.

In the far corner of the room behind the sofa there was a little boy. Rianne estimated he must be five or six. He'd been the one crying and had just stopped when she entered the room, the atmosphere slightly changing as the screaming from the older girl had also stopped for a moment. On the floor there were several pieces of broken ceramic, torn up magazines and pens lying around.
Rianne registered her surroundings in seconds before turning back to Halstead, looking at him questioningly.
He just shrugged his broad shoulders, unfazed by the chaos:

"I was short of locking her into the interrogation-room, but it's occupied."

Rianne held back a comment on this and turned to the kids again:

"Hi, I am Rianne Torres Delgado. I'm a social worker with DCFS and have been called here to come talk to you."

She couldn't continue, because the girl then started to scream again:

"But I don't wanna talk to no one! I just want to go back home! I don't want you here. Where did you take my sister?"

The boy in the corner started to cry again, not liking the raised voices one bit. Rianne's heart went out to him. He seemed to be really scared and didn't know what was going on.

"Upton's got her, she needed a nappy change, so she took care of that. I told her nothing is going to happen to her little sister, but then the throwing stuff started," Halstead said in a low voice right behind her.

Rianne just nodded and continued to watch the girl, still fighting them on everything.
Maybe taking care of what seemed to be her little brother would get them into her good books:

"I understand that and I would feel exactly the same if I were you. I can only imagine it has been a stressful day and I can see that your brother is pretty upset. You mind if I try to calm him down a bit?"

The girl seemed to notice that she'd forgotten all about her brother. She looked at him and then nodded almost unnoticeably with a "whatever"-attitude in Rianne's direction while keeping a suspicious eye on Jay.
He was still covering the entrance of the room as if afraid the girl might do a runner or attack him again.
Rianne knew he was not acting ridiculous. Even though he could have easily tackled the girl given his physical advantage, she'd experienced enough children gaining incredible, almost inhuman strength when feeling threatened.
She made two slow and careful steps across the room to not scare the children and not break any more pieces of ceramic with the heels of her shoes.

Rianne got down on one knee and looked directly at the boy. He had big blue, red-rimmed eyes that were staring back at her full of fear. She had seen so many of those faces, it broke her heart every time:

"Hey buddy, it's alright, you don't have to be afraid. No one is gonna hurt you. We're just looking out for you."

She made sure to include Jay in her statement. Obviously he had gotten off on the wrong foot with these kids.

"Can you tell me your name?"

The boy relaxed a bit, didn't leave his corner though and Rianne kept a safe distance. The girl answered before her brother could:

"His name is Henry."

"Okay, thank you. And yours?"

"Lizzie!"

Rianne nodded thanks to Lizzie then she turned to the boy again, moving to the sofa in the room and perching on the edge of it:

"See Henry, I would really like for us all to calm down a bit. Maybe if you're ready you can join me on the sofa right here and we can talk or don't talk. Your sister Lizzie is also welcome to join us. Are you guys hungry by any chance?"

The boy gave her a shy nod and Lizzie scoffed:

"Maybe."

So far, so good, it seemed like no next tantrum was on the horizon. Rianne tried to concentrate on the task ahead and stay calm. These situations were always tough enough without being under the scrutiny of Jay Halstead. She could feel his always observant and critical stare in her back. She had to get him out of the room.

Rianne was a bit confused why Intelligence was working the case in the first place, as normally this could have been standard patrol work, but she didn't ask. Rianne took a deep breath and sat down on the sofa next to Henry:

"Okay, I for my part am starving. And I know they have a first-class vending-machine downstairs. So maybe we can ask Detective Halstead here, if he can use his expertise on choosing for us from the menu. Or you can just say what you like."

Rianne tried not to be too content with herself for making Jay go on an errand run, she knew he wasn't happy about this. But he seemed to have enough common sense to see that this was to lighten up the situation and get him some kind of distance for a moment.

"I for my part would like a soda and something with lots of chocolate in it. Anybody else?"

Henry still didn't say a word and kept looking at Rianne, but again his sister answered for him:

"He likes crackers and juice. I don't really care what that creep over there gets me."

Jay just raised one eyebrow at Rianne, making it very clear that he did not buy into her outwardly friendly behavior for a second.
Still it was a good plan to give him and the obviously still pissed-off girl some breathing-space.

So he finally nodded and left the room, hoping nothing would happen in his absence. Rianne had really had the audacity to smile sweetly and wink at him when placing her order, knowing that if she scrunched up her freckled nose a bit, it almost came across as cute.

He knew it was Rianne's way of getting back at him for being so tenacious about her coming down to the district asap and maybe general payback for their constant quarrels. He would never admit it, but it bothered him that he hadn't been able to handle the situation on his own and the minute she'd walked in the atmosphere had been much calmer.

Rianne Torres Delgado always made the impression that nothing could shake her, nothing. Apart from the heated discussions they had had in the past, she always kept her cool, even when dealing with difficult parents or children. She was known for being able to quickly create a bond with her clients by trying to see things from their perspective and speak their language, not only in a figurative way.

In the past six months that the department had been working with her, Jay had witnessed her being fluent in Spanish, Italian, German and Dutch. Although kind of admiring and respecting her for all of that, he found they didn't always see eye to eye when it came to certain circumstances.
Maybe it wasn't so much Rianne herself than the way her department dealt with things in general.
Nevertheless, he found her difficult and not very complying, mostly very opinionated.
In any case kind of odd. She had an undefined accent to her English that was sometimes more prominent, other times barely noticeable. Jay had learned from Adam, who knew her for far longer, that she was originally not from Chicago, not even the US.
Apparently her father was a senior diplomat from Argentina, her mother from the Netherlands.
Obviously this had meant a lot of moving around the world for her through her childhood and youth, he didn't know exactly where else she had lived already.

Certainly Rianne had an eccentric dress-sense, not quite like the usual social worker in Jay's experience. He was almost sure, that he'd never seen her wear any jeans, always some vintage bohemian-style dress or skirt or wide pants instead, like it was the 60s and 70s out there. The golden hoop in her left nostril and those tattoos were a different matter altogether. Up until now he had only been able to see the ones on her ankles, wrist and underarm, but he was sure they weren't the only ones she had.
All in all Rianne looked more like an artist than a servant of the city who spent a lot of her time behind a desk filling out reports and forms.

When Jay got back upstairs the door to the break-room was open.
He sighed inwardly, thinking that the girl must have escaped, but when he entered the room with the refreshments he looked at a totally different picture:

All of the discarded and broken things had been cleared off the ground. Hailey had come back in the meantime with the two-year-old girl. Rianne sat on the sofa now with Henry on her lap. Lizzie, sitting beside them, had her little sister on hers, a single tear traveling down her face. Rianne said some soothing words to her, but kept her distance, sensing that Lizzie still didn't want to be here at all.

Jay couldn't believe this had turned around in the matter of minutes only.
He placed everything on the table, Rianne nodding her thank you at him before addressing everybody and nobody in particular:

"I am so curious what Detective Halstead chose for all of you, seems he's just a pro at the vending machine," she stood up with Henry pressed to her side, who clung to her and didn't want to sit on his own chair at the table.

Lizzie slowly followed with her sister. They all gave them some time to dig in and have a bit of peace and quiet. Exchanging a few silent glances with Hailey, Rianne chose to address Lizzie again:

"Feel a little better now?"

Lizzie just nodded, this time not so angry anymore.

"You think we could talk about some of the reasons you three are here now?"

Jay almost expected her to start shouting and screaming again or throw the soda can through the room, but she just shrugged her shoulders defeatedly. Rianne didn't give up.

"See, I have been told that you were caught shoplifting and that there's no adult staying at your home at the moment. This has us really worried, and I think you are worried too. So if you help us out and answer some of the questions, I think we can find a solution for this situation together. Nobody wants to punish you, we're just trying to understand what is going on."

Lizzie slumped her shoulders, more tears springing to her eyes.

As it turned out the three children had been providing for their own for over a week now.

Their mother had been in a psychiatric facility for over four months, their father trying to make ends meet, juggling his job and taking care of the three siblings at the same time. One day he just didn't return home from work.
The unit had spoken to his superior, who showed them a form that had been filled out properly, saying he would take two weeks of vacation. The neighbors obviously didn't give a damn: nobody had suspected anything, everybody minded their own business. Since the school year hadn't yet started, nobody missed Lizzie there either. If it hadn't been for the shoplifting incident they would probably still have been on their own.

Their father was now officially ruled a missing person, but until a capable relative was found Rianne had to take them back to her department, either place them in a group home or with some luck find a family that could take them in on this short notice.

In general she didn't like splitting up siblings, but she could not always prevent that from happening. Not every foster-family could and wanted to deal with three new children at once. She had to make some calls, asking another colleague to come down here, as she didn't have a car seat for a two year old. To have a bit of privacy, she left the children in the break-room with Upton and Halstead and went inside the locker room.
Cases like these still got her upset, as they did everybody else handling this.

But unlike Voight, who had joined them at some point, and Upton, who gave her the impression that they were all in this together, Jay Halstead had something on his mind he couldn't wait to confront her with. He was waiting for her when she got out of the locker room, arms crossed, eyes boring holes into her. Instinctively she knew this was not a good sign, but she couldn't believe the words that came out of his mouth next:

"This is on you and your crappy department! These children suffered because of your negligence!"

"Really? Are you serious?" This was ridiculous!

"That's how you wanna play this?" She brushed past him, not wanting to endure more accusations. He followed her in hot pursuit through the hall into the bullpen.

"Yes, I'm serious! If you took better care of these families, none of this would have happened."

Somewhere deep inside of him Jay knew he was out of line, but he was so angry. Just yesterday they had closed a case were an ex-social worker had recruited girls from one of her former teaching classes and had turned them into drug traffickers. His trust in the social system and the general nature of humans was quite disturbed right now. He couldn't seem to stop himself.

It didn't help that Rianne would have none of it. She stopped in her tracks and faced him. Her tone was agitated, but she managed to keep looking at him without the amount of hate that he had just directed at her. Just a small vein in her slender neck was pulsating rapidly and the color that had sprung to her cheeks hinted that this was an emotional matter for her as well:

"Detective Halstead, I think I don't have to explain to you that there are hundreds, hell thousands, of families in Chicago who are struggling. Children having to take care of siblings, having to take care of themselves. Not having the privilege of being born into a loving, providing family, and not being able to be raised as we would want them to be raised. Being bullied, being abused, being left alone and God knows what. Like I said: I don't have to explain that to you, you probably know worse cases than I do. I get that you don't like it, neither do I, but that's the way the world is. I'm doing everything I can to help and make it easier, but there is only so much I can do to prevent some things from happening. And I will not stand here and listen to any more of your accusations, just because maybe you have a hard time accepting that we can't save them all. Trust me, if I could I would take them all in myself, but I can't. I have dealt with that a long time ago, maybe you should start too."

"Don't you dare psychoanalyze me Missie," Jay heard himself say in a quiet, not so friendly voice and couldn't believe the words that came out of his mouth.

What was it with her that he got boiling over with anger every time?

"Missie? What are you, three?" she laughed a little hysterically at him, turned on her heel just leaving him to stand and stare after her and went back to the break-room, passing Hank Voight who had been listening in to their conversation.

Jay knew his Sergeant was ready to jump in, if he so much as uttered another word. And he was in a bad enough place with the boss right as it was so Jay kept his mouth shut, although he hated that Rianne had gotten in the last word. He watched her leave with the kids, radiating calm and trust, like that little shouting match hadn't just taken place.

She took the youngest one in her arms, who had fallen asleep on the couch. Henry instantly grabbed the hand she extended to him, urging him to come with her now. He put his thumb in his mouth, keeping his small body close to hers as they went. Lizzie went on her own, still not happy with how the day had turned out for them, but following Rianne nonetheless.

Voight nodded his goodbyes and Hailey called after them to let her know how it would go with the placement of the children, before sitting down at her desk.
Rianne didn't turn around again and ignored him as he stood at the top of the stairs, seething.

It didn't take long before he heard Voight's booming voice call out in his back:

"Halstead – my office! Now!"

Jay guessed he was in for another lecture.

Hailey had begun to write up a report about the kids, which didn't take that long. She tried hard not to listen in to the conversation, that was taking place on Voight's office, but she could already guess what it was about. Especially after Jay came back out, stormed off into the locker room, thunder in his eyes, and slammed the door shut behind him.

He should really learn to keep himself in check concerning Voight. Otherwise Hailey feared for his future in Intelligence at the moment. They had been going head to head for weeks now and Voight's patience with his otherwise well-liked detective was wearing thinner and thinner.

Keeping up with her partnerly duties she followed Jay bravely, knowing fully well he would not want to talk about it, but that she would make him do it anyway. This wouldn't be the first time she got through to him.
As she suspected, he was pacing the room like a tiger in a cage, trying to calm down or get himself worked up even more, she wasn't sure yet. Hailey did not address him; she just stood in front of the exit and kept looking at him. Jay abruptly stopped in front of her, raising his arms in the air and shouting:

"What?"

"I don't know, you tell me," she said calmly and waited for more pacing and running his hands through his hair on his end.

"I am so not going to apologize!"

"Is that what Voight told you to do?" she asked, but didn't get a direct answer.

"She could have gotten here earlier, helped us handle that situation better in the first place. And I still believe that her department could have taken a closer look at that family after their mother was institutionalized. I'm sick of all this."

"Jay, you know how these things go. Maybe they did, maybe in the beginning there was nothing to worry about. Things have gotten out of hand a week ago, no one checks on every family every week. You know how many children, families and people in general would need our help, but some fall through the cracks, it's inevitable. You can't blame it all on DCFS or her personally. And please excuse my candor, but I think you're overreacting, which is usually a sign that something else is going on with you."

Jay had been watching her talk, his face still writhed with anger. At her last words his mouth slightly twitched, then he turned and went to the basin to splash some cold water into his face:

"She just annoys me! That attitude of her is really something," he went on.

Hailey knew he would not back-paddle now:

"I think I quite like her. She certainly had a way with these children."

She didn't know Rianne that well. Hailey had met her only a few times when she had been with Adam, on one of his cousin Nate's famous parties and on a weekend with several members of the Ruzek family at Mackinac Island.
There had always been far too many people there to have time for a long and serious conversation, but Hailey felt like Rianne was a kindred spirit in some way. They did have something major in common concerning their life experience, but she didn't have to tell Jay that.

Jay was quiet for some time, slowly running his hands over the wet skin on his face until it was almost dry again. Then he slumped down on one of the benches and put his head between his knees:

"She made me feel so stupid and incompetent today. I am usually good with kids, but this time – I felt a little helpless. I wasn't sure how to connect with that girl. And then she waltzes in, in her hipster jumpsuit, and everything works out..."

She knew he didn't like not being in control, because it reminded him of a time in his life that he'd rather wanted to forget. Hailey put her warm hand on his tense shoulder, urging him to look up into her eyes:

"It's only natural that we can't all handle every person the way someone else can. How many times do we see that every day? I could get confessions from people you couldn't and vice versa. It's why we're a team with very different characters. Maybe you should start to see her as part of the extended team and not as your enemy. In the end we all want the same and I personally think her heart is in the right place. Don't let recent experiences cloud your judgment."

She let him sit on that for a while before she made another suggestion:

"Maybe you should go home early. Blow off some steam, watch ESPN classics all night long, go to your gym, go for a run or whatever works for you. We've all been working overtime the last few weeks; maybe it even has been for months. We tend to forget to care for ourselves in the meantime."

She let him mull that over for a while until Jay agreed, took his brown jeans jacket and left the district.