Series revolves around a team of forensic investigators of the Las Vegas Police force as they solve complicated crimes by putting together evidence in a methodical manner with attention to even the tiniest of details. Heading up the CSI team are Gil Grissom, a forensic expert and former coroner, and Catherine Willows, a former exotic dancer who has worked her way to the top of the forensic game. Assisting them in their work are Warrick Brown, a native to Vegas and former casino runner, Sara Sidle, a workaholic Grissom recruited from San Francisco, Nick Stokes, a former cop from Dallas, and Greg Sanders, a lab tech turned field agent. Also assisting the CSI team are homicide Detective Jim Brass, a former New Jersey detective, and Chief Medical Examiner Al Robbins.