Baton Rouge Police Chief Dewayne White said he has launched an internal investigation into the department’s sale of 64 guns to a Lafayette police and hunting supply store.

The sale, which happened last year prior to White being named police chief, violated state bidding laws, White has said.

The guns, all of which were for police use, were sold to Barney’s Police and Hunting Supplies in August 2010 for a store credit of $7,565, White has said.

That credit was still on Barney’s books in August 2011 when the Police Department’s Special Response Team was looking into purchasing new weapons, White has said.

“It’s unusual to have any credit,” the chief has said. “That’s when I began to look closer into the issue.”

White, who was named chief in June, discovered that on Aug. 24, the Police Department sold 400 surplus guns to Barney’s. The sale went through the bidding process and Barney’s made the law-enforcement agency the best offer, White has said.

Less than a month later, on Sept. 15, the department sold 64 additional surplus weapons to Barney’s, White has said. That sale, however, did not go through the bidding process.

Investigators with the department’s Internal Affairs Division will look into whether any departmental policies were violated and the chief will then decide whether anyone needs to be disciplined.

White said Thursday that if during the process of the internal investigation detectives with the department’s criminal division need to be brought in, they will.