A former Louisiana Department of Children and Family Services managing auditor who used his state credit card to rent hotel suites for Mardi Gras in New Orleans and accepted reimbursement for official travel that never occurred must pay nearly $31,000 in restitution to the agency, a federal judge ordered.

Corey S. Polk, 33, of Baton Rouge, also was put on probation for two years Thursday by U.S. District Judge James Brady. Polk is the third former DCFS auditor to be sentenced in a federal investigation that U.S. Attorney Walt Green said Friday is now over.

Polk’s attorney, Assistant Federal Public Defender Mark Upton, declined comment.

Delrice Jermaine Augustus, who was the department’s auditing director, was sent to federal prison for 37 months last year and ordered to pay $155,000 in restitution and to forfeit $150,000 to the federal government.

Augustus, 34, of Baton Rouge, admitted he began stealing from the agency in 2010 by using an assistant’s state credit card to buy personal items and also misused a state travel card to buy hotel suites in New Orleans for Mardi Gras and the NBA All-Star Game.

Augustus, who had been auditing director for DCFS since mid-2009, resigned in May.

Former DCFS auditor Kaneasha Goston, 38, of Baton Rouge, also pleaded guilty last year to federal program fraud in the case involving Augustus and was put on probation for two years and ordered to pay more than $10,000 in restitution to DCFS.

Federal prosecutors have said Augustus used a subordinate’s state credit card to buy personal items for himself and others, including televisions, movies, cameras, wireless audio systems, gaming devices and mobile devices.

Augustus also created and used fraudulent documents to request and receive reimbursement from the state for official travel that did not occur, his plea agreement stated.