Here's another one the taxpayer should not be paying to investigate. If a clerk is abusing a customer rewards program, that should be dealt with internally and the person fired. The store can choose to restore the rewards to the customers who lost their coupons.
Coupons or internal rewards used as a sales promotion are not the problem of the police, or society as a whole.
Watertown Daily Times | Store clerk stole customers’ rewards, police allege