The Metropolitan Police are examining 28 claims of major abuses across 12 boroughs - with four separate investigations in Tower Hamlets, East London.
Labour supporters stand accused of packing the electoral roll at the last minute with relatives living overseas or simply inventing phantom voters.
Officials in Tower Hamlets received 5,166 new registrations just before the April 20 deadline, and there has been no time to check them all.
In Bethnal Green, it is feared the electoral register has been deliberately stacked with fictitious names.
Sounds just like ACORN and the Democrats, doesn't it?