What would Leo's life be like if Cassie and Theresa hadn't been killed in Ghosts? This is a little look at a scene from s12e01/s12e02 'Safe' if Theresa was still alive and had visited them at the lab.

DISCLAIMER: None of what you recognise belongs to me - I wish it did but sadly it doesn't. Silent Witness, and all characters and storylines that you recognise from the show, all belong to the BBC. I can only take credit for story lines and characters which you do not recognise from the show.

"DUI." Leo tells Harry and Nikki as they stand around the large table in the layout room.

"Drunk driving?" Nikki can barely believe what he's saying. She can barely believe that a man like Leo, a man who works with the police on a daily basis - a professor no less - would get arrested for drunk driving.

He nods his head slightly. "They've given me 40 hours community service."

"40 hours!?" Harry exclaims. "I have to get the name of his lawyer." He reaches out and turns the page in front of Nikki towards himself slightly. "Is that the tox report?"

"Yeah." Nikki tells him before turning back to Leo. "And you didn't think you could tell us?"

"No." He says quietly. He reminds her of a scared little boy getting told off by his parents for stealing the last cookie from the jar.

"To keep it a secret?"

"Oh no, we don't have any secrets do we?" She senses the smirk on Harry's face without even looking - he's loving this.

"Well, I just don't understand." She says, turning to Harry.

"There's no way he's going to tell us, he's our boss. It would undermine his authority, it would diminish his moral superiority. He wouldn't be able to think he was right all the time…"

"Ah ok." Nikki interrupts him.

"…something which, I hazard a guess, he's really going to miss."

"I'm beginning to understand a bit better." A smile finally graces her face.

"Good god Leo, almost makes you human." He steps closer and leans over her to look at the tox report. "What does this say?"

"He'd been drinking." Nikki tells them.

"How old was he?"

"14?" Harry says, his voice rising slightly as if he was asking rather than answering.

"In the middle of the day?" Leo asks.

She flicks her eyes to Leo as Harry says "Can you afford to be sanctimonious?"

"Sanctimonious about what?" The three of them turn to the door as a new voice enters the room.

"Leo was arrested and given 40 hours community service for drunk driving." Harry tells Leo's wife, Theresa. She steps into the room, and goes to stand next to Leo, accepting a kiss on the cheek from Harry and a friendly squeeze of the arm from Nikki on her way past them.

"Drunk driving? When?" She slips her arm around Leo and pecks him on the lips. "Why didn't you tell me?"

"Look… I was just over. It was a stupid mistake."

"Most mistakes are stupid by their nature." Harry says, shaking his head.

"Monoacetylmorphine, cocaine, codeine." Nikki says, trying to steer the conversation back towards the case.

"Crack and smack."

"You should have told us." Theresa says, turning to her husband. "It's not as if you killed a man… You didn't, did you?"

"No. I was ashamed." Leo told her, pulling her closer.

"So you should be." Harry says without taking his eyes of the report.

"I'm sorry." Leo turns towards Harry and Nikki. "I'm sorry for all of it."

"It was a very stupid thing to do."

"Listen, can we just draw a line under this, please?" Leo begs.

"Absolutely not." Theresa says, her eyes just as mischievous as Harry's are. Nikki giggles, turning to bury her head in Harry's shoulder in an vain attempt to muffle them, as detective Wallace enters the room.

"Am I interrupting something here?"

"Only the three of us grilling my husband here for not telling us about his DUI." Theresa tells the new face. "I find it quite exhilarating to be married to a criminal. Listen, I only dropped by to invite Nikki out for drinks tonight," She turns to the woman in question "if you're free?"

"Absolutely. I'll call you when I finish."

"Great. I'll let you get back to work." She pecks Leo on the cheek and leaves the room, smirking as she hears her husband groan in frustration.

"I should never have told you." He mutters, the words only just decipherable to her.