Lyn laid off the detective work for a bit as she and Laura got stuck into a bottle of red and the first series of Sherlock. Even this led to some interesting revelations.

Lyn was perving on Sherlock. 'Oh I love it when he swishes his long coat with those high cheekbones' she said, tucking her feet up underneath her on the sofa and relaxing for the first time in ages.

Laura laughed. 'Sherlock, really? I prefer Dr Watson. He's friendlier and ok, maybe not a genius but he's smart too. He must be, he's a doctor after all.'

Lyn sighed. 'I get a bit sick of Doctors.' Then she realised what she said and sat up straight looking at Laura anxiously. 'Present company excepted.' Laura laughed. 'Of course.'

Lyn thought about messaging James again to tell him the significance of Laura fancying Watson but decided against it. It wasn't the kind of hard evidence he was after. She didn't have to wait long though. They'd just finished the first episode and started their second bottle of wine when Laura's ears pricked up at the sound of a car pulling in to the driveway. 'That sounds like Robbie's car' she said leaping up. Lyn stored that away as another not-quite clue. How did her Dad's car pulling up on the gravel outside sound different form any other car pulling up on the gravel outside? She followed Laura to the door and was rewarded with a bear hug from her Dad. 'Hiya, pet. It's good to see you. How are you?' Lyn answered honestly. 'A bit tipsy. How are you? Rough case?'

'Aye' he said. 'Rougher for Sergeant Hathaway though.' He gestured behind him and James emerged from the shadows, the right side of his face swollen and his nose bleeding slightly. Laura grimaced. 'James, what happened to your face?' Sergeant Hathaway didn't even try to smile, it hurt too much. 'A fist happened to my face, several times in fact.' Understanding spread across Laura's face. 'Ah, it said "asaulting a police officer"on the radio. That was you.'

James acknowledged this with a nod. Lyn lifted her hand. 'Let me take a look at that.' James backed off a little but didn't resist. 'It's not too bad' she said. 'I can clean you up.' She turned to Laura. 'Do you have any savlon, cotton wool, anything like that?' Laura nodded. In the bathroom upstairs. There are antiseptic wipes in the bottom drawer.' Lyn beckoned James to follow her, which he did reluctantly. 'I'm fine' he said as they trudged up the stairs. 'I got checked out at the scene.' 'I can see you're fine' replied Lyn. 'Though you'll have a hell of a bruise tomorrow. I wanted to get your opinion on clue 2.'

James felt stupid, something that didn't happen very often. 'Of course, you've already searched the drawers. You knew where the first aid stuff was kept.' Lyn opened the bathroom door. 'Exactly. Draw one, make-up. Draw two, male wash bag. Draw three, tampons and panty liners. Drawer four, antiseptic wipes and bandages. What I want you to tell me is if the order matters?' James didn't quite see where she was going with this line of reasoning and said so. She grabbed a wipe out of the drawer. 'I mean, how organised is Laura?' She flipped the lid of the toilet down and made him sit down and lean back as she dabbed at his nose. He closed his eyes and visualised the drawers to try and block out the pain. Suddenly he saw what she meant.

'First aid kit in the bottom drawer. Least easily accessed, least frequently used.' Lyn smiled. 'Right. Tampons in the third drawer, needed once a month. Make-up in the top. How often would you say Laura wears make-up. Every day?' James considered it. 'She doesn't look tarted up or anything but I reckon she has some on most days.' They looked at each other. 'So whoever it belongs to likely stays over more than one a month but not everyday' Lyn said, proudly. James smiled. 'Excellent work Detective Lewis!' Lyn binned the wipe then opened the second drawer. 'How long does it take shaving soap to dry out like that?' she asked. 'Tim has an electric razor so I have no idea.' James shrugged. 'So do I. So does everyone under the age of sixty.' Lyn looked triumphant. 'So it is Dad's'. James tutted. 'No jumping to conclusions. All we know is that if Laura has a regular guest he isn't a toy boy.' Lyn wasn' to be defeated. 'Ok, fair enough. But smell. Doesn't it smell like dad?' She thrust the soap in his face but he backed off. 'I don't know. It might be cutesy for you to sniff it and think of your Daddy like a wether's original advert, but he's my boss and I can't say that we're that close.'

Lyn threw her arms up in the air. 'Fine, so what do you want me to do?'

James looked grim. 'This is all circumstantial evidence. What we need is a confession. You're going to have to interrogate her.'