BLOOMINGTON (WEEK) -- The Normal police officer accused of stealing $12,000 from a victim of a drug overdose has pleaded not guilty to all charges Friday.

Brian Williams is charged with two theft charges and two charges of official misconduct, all felonies. The 18-year veteran of the department was placed on administrative leave following the arrest.

Williams was one of the responding officers on November 25 for checking the well being of a person who potentially overdosed.

The person did die of the overdose, but a family member contacted police to report the missing $12,000 when the officers left the residence.

Shortly after the incident, the relative received anonymous calls, to "quit speaking with police in order to have the money returned."

While she was with Illinois State Police officers, the relative received another call from an unidentified number, asking if she wanted the money back. She then suggested they meet at a gas station in Pontiac for the exchange.

Illinois State Police followed and recorded the woman during the incident at Pontiac.

Court documents reveal undercover officers said they noticed an individual driving around the gas station, parking, entering and exiting his vehicle in a suspicious manner.

He eventually parked near a phone booth, got out of his car and placed a bag inside. Soon after, the relative got a call that the suspect left the money and was watching.

Normal Police say the bag contained the missing twelve grand and they approached the suspect who identified himself as a Normal Police Officer.

Williams was arrested and charged with official misconduct/theft and possession of stolen property.

Williams is next due in court January 27.