Denver Mayor Michael Hancock, at left, introduces Patrick Firman as new Denver Sheriff in October 2015.

(Vic Vela/For CPR News)

Denver Sheriff Patrick Firman says that within a few weeks, his department will finalize a new policy to discourage the use of force by officers. 

Firman on Tuesday updated a City Council committee on the progress of a bevy of reforms at the department. The agency has been under heavy criticism after a series of deputy misconduct cases. 

“The main thrust of the policy is we want deputies to, whenever possible, choose other means rather than force," he said. 

A big challenge will be changing the culture, Firman admitted. 

"We have a very tough culture that we deal with within corrections," he said. "There’s a lot of people who’ve been around a long time. And change is hard.”

Firman began his role as sheriff four months ago.