The mayor of Bridgewater confirms the chief of police is currently being investigated by the Serious Incident Response Team.
SiRT started investigating John Collyer two weeks ago for allegedly assaulting a teenage girl and obstructing justice.
David Walker says he is hopeful it will be thorough and quickly resolved.
"It's a difficult time for Chief Collyer and his family. It's a difficult time for everyone involved."
Collyer was placed on administrative leave on August 18 following a decision by the Bridgewater Board of Police Commissioners.
No criminal charges have been laid.