IMHO its just the usual bollocks advocates spew out before sentencing. You know the kind of stuff - my client hadn't eaten and is on medication which reacted badly with the alcohol etc etc.
I would like to think that a public servant processing benefit claims and noticing one or more fraudulent claims would be bringing it to the attention of the benefit fraud team. Saying nothing and bunging a claim in for yourself is not the action I suspect the vast majority of PS workers would take. Especially if they're all benefit claimant hating harridans as as been suggested earlier in the thread.