OKLAHOMA CITY - Police arrested a registered sex offender at the state fair who they say was working near children and impersonating an officer.

Aaron Craiger was arrested over the weekend for failure to comply with a sex offender registration and holding oneself as a police officer.  

In 2006 Craiger was arrested and charged with five counts of second-degree rape. After he was convicted, he was classified as a level 3 sex offender; a designation reserved for those convicted of the most serious crimes and/or those who have been convicted more than once.

Police found Craiger working near the ‘The City of Agtropolis', which has exhibits for young children.   Officers say he was wearing a "Bail Enforcement" T-shirt, a gold badge on his belt, and a pair of handcuffs.

"Especially in a children-orientated part of the state fair, that's not good," said Isaac McCabe, who was at the fair with his 22-month-old daughter.

Officers recognized Craiger from previous contacts. Craiger has been arrested several times for failing to comply with the Sex Offender Act. 

All sex offenders are required to sign paperwork that says "it is unlawful for me to work with or provide services to children."  A spokesperson with the Department of Corrections says it would be up to the district attorney if that would apply to the fair. 

A fair spokesperson, however, says they have their own policy.

"Anybody who is on our payroll either directly or indirectly through any of the temp services that we use require background checks," said Scott Munz.

However, according to court papers, Craiger said he was working for a private contractor, BFE contracting, recording people's names and personal information for home remodeling services.

The owner of BFE tells News 9 he did not do a background check and regrets it.  And he will do one in the future.

"We will not have that anymore," said Brad Elliott.

Munz says they will be speaking with all their other vendors and encourage them to do the same.

"It behooves all of us to have quality employees. It not only impacts our reputations the Oklahoma State Fair, but it also impacts the reputation of the individual vendors."