(CNN) A Massachusetts police department has a thief in its midst.

Officers with the Franklin Police department had worked diligently to collect toys for needy children this holiday season, but noticed that some of those toys were disappearing, according to CNN affiliate WFXT

Fortunately, the culprit was caught in the act and on camera. It was their own therapy dog, Ben Franklin.

"When Ben saw the toys, he thought they all belonged to him," Deputy Chief James Mill told the station.

Among the stolen items was a baby doll.

Ben tried to outrun officers when they caught him carrying a baby doll in its carrier by the handle. But he ended up just leading them back to the stash of goodies by his bed under a desk.

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