Police say a Brooklyn man stole loads of diapers from Nassau supermarkets by scanning substitute bar codes for cheaper items at self-checkout lanes.

Kevin W. Hargrove, 24, targeted various Stop & Shop stores about 14 times between Jan. 7 and April 1, making off with more than $3,000 in merchandise, Nassau police said.

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Hargrove was arraigned Friday on charges of third-degree grand larceny and two counts of second-degree falsifying business records. Bail was set at $9,000 bond or $4,500 cash.

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Prosecutors said Hargrove would typically scan the bar code for a $1 pie plate and make off with $49 to $99 in diapers that he'd later sell on the street.

"If I had to guess, I've hit every Stop & Shop in New York, New Jersey and Connecticut," Hargrove told investigators, according to the criminal complaint. "I've been doing this so long, I can't remember." He was represented by Legal Aid, which does not comment on cases.

Police said Hargrove is under investigation for similar thefts in the tristate area.

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"With the increase in use of self-checkout stations at stores, thefts by UPC label are on the rise," Nassau's Acting District Attorney Madeline Singas said in a statement. "The systematic theft of goods through this scheme hurts businesses and consumers who may ultimately pay higher prices to cover the losses." With John Valenti