The Johnson County Sheriff’s Office says a person has been calling people claiming to be a command officer from a fictitious Federal Warrants Division at the Johnson County Courthouse.

The caller tells potential victims they have a federal warrant and will be arrested if they don’t pay the fine. The sheriff’s office says the scammer names an actual judge by name and claims the judge is angry so they need to pay with a prepaid debit card.

The office says the procedure for contacting people with warrants does not include demanding immediate bond payment.