A St. Charles man is in custody after he used counterfeit money to buy a gift card from a Baton Rouge Walgreens, an East Baton Rouge Sheriff’s Office report says.

A manager for the Walgreens contacted the Sheriff’s Office on July 10 and said an unknown man, later identified as Derick Van Monk, purchased a $200 gift card from the store July 9 using 10 $20 bills, the report says. The manager later discovered the bills were counterfeit. Using video surveillance and Monk’s date of birth, taken from his license when he purchased the gift card, deputies learned he was incarcerated in Lake Charles on a previous count of monetary instrument abuse. He’s accused of printing counterfeit currency in that jurisdiction.

After the Baton Rouge deputy observed that all $10 bills displayed only two different serial numbers rather than 10 unique numbers, the deputy sent stills taken from the store’s surveillance footage to media outlets July 28 and received information July 29 that Monk, 29, was incarcerated at the Calcasieu Parish Jail.

Monk was kept in custody on 10 counts of monetary instrument abuse and theft.