CANANDAIGUA — A former Geneva police officer will be prohibited from working in law enforcement in New York State following his plea to a drug charge last week, the special prosecutor in the case said Monday.

Nathan Jacon, who resigned from the Geneva Police Department last August, pleaded guilty to seventh-degree criminal possession of a controlled substance in Ontario County Court, said Wayne County District Attorney Christine Callanan, the special prosecutor in the case.

“This case involved conduct that carried consequences far beyond the criminal charge itself,” Callanan said. “As a result of this plea, the defendant has been decertified and can no longer serve as a police officer in New York. Public trust in law enforcement is essential and when that trust is compromised, accountability must follow.”

Jacon originally was charged by the Ontario County Sheriff’s Office with fifth-degree criminal sale of a controlled substance, fifth-degree criminal possession of a controlled substance with intent to sell, seventh-degree criminal possession of a controlled substance, and official misconduct.

Jacon was charged a week after three others were indicted on drug charges, including two members of the city police department, Michael Tapscott and David Felice. Also charged was a member of the Hobart and William Smith Colleges Public Safety, William B. McGowan, who was accused of tampering with physical evidence.

The status of the cases involving Felice and McGowan was not available as of Monday morning.

Tapscott will spend 16 weekends in jail, along with getting five years’ probation, as part of a February plea to multiple drug charges in Ontario County Court.

Callanan, also the special prosecutor in Tapscott’s case, said he agreed to a plea after being indicted on additional drug charges Feb. 19. He is scheduled to be sentenced by Ontario County Court Judge Fred Reed May 28.