You mean to tell me that a typical CSI doesn't just collect semen and blood samples from a crime scene...they are forensics experts in the lab, make wonderful assistants during an autopsy, often participate...no, make that lead a swat team into harms way, make outstanding homicide/vice/narcotics detectives, arrest their own suspects, experience daily gunplay and vehicular pursuits, frequency head multi-agency operations to include the FBI, ATF, CBP, ICE, etc., and occasionally participate in overseas foreign intelligence missions with the CIA?
Ok, I can believe all the above...however, the show loses all credibility when they attempt to portray the CSIs as being weapons experts too!