No, said the Department for Work and Pensions, you can't visit a jobcentre to talk to social fund claimants. That's the first no I've ever had from the DWP's press officers, always helpful under both Labour and Tory governments.
Coincidentally I was picking up a friend from the Jobcentre yesterday, I managed to get inside and speak to people. I wasn't interviewing anyone obviously but I didn't get the impression I'd be told to get lost if I had. It's not like a prison or a Tuscan villa where you need a permit to get over the wall.
I'm told some inner city Jobcentres have guards on site but even then surely she could wait outside- or get some Guardian intern to wait outside- and speak to people going in or out.