166. Oath of office - The Correctional Investigator and every person appointed pursuant to section 161 or subsection 165(1) shall, before commencing the duties of office, take the following oath of office:

"I, (name), swear that I will faithfully and impartially to the best of my abilities perform the duties required of me as (Correctional Investigator, Acting Correctional Investigator or officer or employee of the Correctional Investigator). So help me God."