The Muskogee County Sheriff's Office is hosting a three-week training course for law enforcement agencies across the state.
It's a free opportunity to learn investigative skills.
Three weeks of training
Mock crimes were set up to look as realistic as possible and put investigative skills to the test.
Officers have to take pictures and measurements, get fingerprints, and collect evidence to solve their case.
"We have to better ourselves," Jesse Mitchell with the Cherokee County Sheriff's Office said. "Laws are always changing. Technology is ever advancing, and no crime scene is the same. It doesn't matter what we do in the day. Everything changes. So we always have to learn."
Twenty investigators and police officers from different departments across Eastern Oklahoma went to the Muskog