About a dozen people ages 11 to 50, including a nun, are taking part in an advanced CSI camp. This is the first year Mount Saint Mary's University is holding it.
The camp is taught by a retired FBI crime lab agent and a Frederick County crime scene investigator.
Campers learn about blood spatter, trace evidence and shoe impressions. Many of them are thinking about careers in forensic science.
"In the future I think it helped me decide whether or not I want to do CSI investigations as a career," says Ellen Weber. "I'm still thinking about it, but it's more of a possibility than it was."
The Mount plans to have CSI camp again next year.