Steve has turned on his computer and is clicking away. I say, ‘How come you want to keep Fallon on ice?’

‘Only for a minute.’ Steve is typing. ‘He heads home and goes to bed, gets up and makes himself a fry? Whatever way you look at it, that’s pretty cold for a good law-abiding citizen. Even if he’s just trying to look innocent. I want to run him through the system, see what pops up.’

‘Run her, too. I want to know where I remember her from.’ I dial my voicemail, tuck the phone under my jaw and start sorting through the statements from last night’s scumbagfest – we need to get the file to the prosecutors before our hold on the scumbags runs out. McCann is mumbling into his mobile, clearly taking job-related shite from his missus (‘I know that. Tonight I swear I’ll be home by— Yeah, I know about the reservations. Of course I’ll be—’), and Roche is miming whipcracks.

I have another voicemail from Breslin – I’m starting to get my hopes up that we can work this entire case without ever actually seeing each other. ‘Yeah, Conway. Hi.’ Still smooth, in case Hollywood is listening, but just a faint edge of displeasure: me and Steve have been bad little Ds. ‘Looks like we’re having some trouble liaising here. I’m back at base. I’ll go ahead and get that incident room sorted out for us; you ring me back ASAP. Talk soon.’ I delete it.

‘Rory Fallon isn’t in the system,’ Steve says.

‘At all?’

‘At all.’

‘Little Holy Mary,’ I say. Staying out of the system is rarer than you’d think; even a speeding ticket puts you on file. Rory has officially never done anything naughty in his life. ‘That doesn’t mean he was actually a virgin till last night. Just that he never got caught.’

‘I know. I’m only telling you.’

‘Did you run Aislinn yet?’

‘Doing it now, hang on . . .’

I ring Breslin’s voicemail and leave him a message to meet us in the observation room in ten minutes. Steve says, ‘Nah. Nothing there either. Between the two of them, they’d make you heave.’

‘Looks like they were perfect for each other,’ I say. ‘Shame it didn’t work out.’ I finish flipping through the last witness statement, and stop.

The last page is missing. Without that – the page with the signature – the whole thing is worthless.

I’ll never prove I didn’t drop it on my way back from the interview room. There’s even an outside chance that actually happened – it was late, I was tired and pissed off and hurrying to finish up by the end of my shift. I can check: wander back and forth like an idiot, peering hopefully under desks and into bins, while this roomful of tossbubbles hide behind their monitors holding back baboon-howls of laughter and waiting to see who explodes first. Or I can go on the rampage looking to string up the fucker who pinched my statement sheet, which is probably what someone is hoping I’ll do. Or I can glue my mouth shut, track down my scumbag witness and spend another couple of hours re-convincing him that talking to cops is cool and digging his statement out of him, one-syllable word by one-syllable word, all over again.