The County Sheriff's Credit Card Expenditures form is a monthly report to the county commissioners listing all of the expenses incurred on the county sheriff's department credit cards. The form is used whenever a credit card is used by the county sheriff or a deputy sheriff, with the court case number identified. This form should be attached to the monthly blanket purchase order that is submitted to the county clerk.
19 O.S. § 1506(E)

The information for the form comes from the officers who performed the travel and carried out the duties and their receipts and from the court case documents ordering the travel, such as delivering a prisoner, picking up a prisoner, or other activity.
19 O.S. § 1506(E)

On the back page of the form is an affidavit of verification. This form is used by the county sheriff to verify, under oath, that the itemized expenditures fall within the limits of the law regarding credit cards for the county sheriff's department. The county sheriff also approves the amount for the itemized statement.