19 Fortunately, PC Day is at work and they’re able to put me through to him. I don’t have my crime reference number to hand and I don’t much fancy recounting the whole of the last week’s events to someone new. I need PC Day, and I’m lucky to get him. ‘I’m on my way home now,’ I tell him. ‘I’ve got the original business card that he gave me last week. That has his name, his phone number, the address — everything. There might be something you can use,’ I say. I don’t know what, but it’s got to be worth a shot. His mobile phone number must be registered in his real name, for a start. Or maybe there’s some fingerprints they can get off the card. Can you get fingerprints off paper? I don’t know. ‘Business card? You didn’t mention a business card the other day,’ he says. I try to think back.