A former investigator for a north shore District Attorney’s Office was arrested Friday and accused of exchanging cash and drugs for sex with drug offenders, according to state Attorney General Buddy Caldwell’s office.

Michael Cotton, 66, of Bogalusa, was booked on counts of abuse of office and being a principal to possession of narcotics, Caldwell said.

Cotton’s arrest came after an investigation conducted by the FBI, the state Inspector General’s Office, the Attorney General’s Office, State Police and the District Attorney’s Office. The Attorney General’s Office will handle the prosecution.

District Attorney Warren Montgomery said Cotton had been with the 22nd Judicial District Attorney’s Office for a long time but left in the summer. Montgomery said he became aware of the allegations in the spring.

The office covers St. Tammany and Washington parishes.