A Coast Guard officer was sentenced to three years in the brig and dismissed from the service after being convicted at a court martial for drug and other offenses.

Ensign Johnson C. Knox was found guilty of possession and distribution of multiple controlled substances, cruetly and maltreatment toward a subordinate, assault, absence without leave, failure to obey an order and dereliction of duty at a general court-martial  at the Coast Guard Courtroom in the Prince Kuhio Federal Building Tuesday.

While awaiting court-martial, Knox served at Coast Guard Base Honolulu. He was assigned to the Coast Guard Cutter Kukui at the time of most of the offenses.