benefit claims are linked via computers by national insurance numbers. the only people who attempt to make multiple claims will have multiple forged/stolen ID docs to back up a national insurance number. it's not so common these days.
Except they normally have to come in once a fortnight, daffy, to 'sign on', although maybe there are exceptions for some disability benefit claimants, and I don't recall Abul Hamza (or was it the other one) having to sign on every two weeks
How many people do you know, redvanman, that claim in more than one name? Or is it just an urban myth that lots of people do it. Where I think fraud may take place is people claiming for more children than they have, but even then the scale is small
"The DWP publishes official estimates of fraud in the welfare system. The most recent publication estimated overall fraud at 0.7% of the benefits bill. At £1.2bn, that sum might – just – be said to count as "billions". But we should remember benefits can be underpaid as well as overpaid – and last year, those underpayments (arising from errors by either officials or claimants) added up to £1.3bn – more than the cost of fraud."