This is going to kill NH. 
Actually, market forces will take care of this. Welfare fraud is hard to stop. Back in the day I had a friend on the dole (food stamps actually) offer to buy lobster or ice cream to trade for smokes and booze. While I was eating balogna, he was eating steak and driving a 'Vette. He was a seasonal employee and boy did he know how to game the system.
Back years ago when they still had the paper stamps, coupons, whatever they were called, I used to frequent this little bar up the street from where I lived at the time. The bartender there would give you 1 dollar for every two dollars of food stamps. He told me one day he ate real good that way.
There was this little neighborhood grocery store owned by a guy from Lebanon, now closed, that I used to shop at. The owner would give the welfare parasites their change in food stamps when they would come in and buy something cheap and pay with a 20 dollar food stamp. Pissed the welfare parasites off to no end.
That was just my experience with welfare fraud. A girl I currently work with took a second job at Walmart to put her son thru college tells me stories about the welfare parasites that come thru her register. It's amazing.
I have absolutely no sympathy for these parasites.