For more than 30 years, Darrell Coslin has been in law enforcement and his experience has lead him to teach a class for deputies. In his class, he plays videos and evaluates how officers respond. Coslin said it is best to learn by example rather than experience.

"We want to teach deputies and officers how to de-escalate so we can avoid using excessive force all together," Coslin said. "If we wait and learn by experience, it may be too late. The officer or deputy may not survive the incident."

Coslin said rookies aren't on their own after graduating from the academy. They first shadow a field training officer for nearly six months. The work load is stacked for them, after that, they shadow a senior officer for nearly five months. Plus, deputies have to go through 40 hours of continuing training every two years.

When a deputy is involved a shooting. They're automatically put on paid administrative leave. Deputies have to be psychologically approved to work again.