Three Generations are Enough - S1-E8
Visible crew/equipment: At the beginning when the robot is lifting fingerprints from the suitcase, you can see a person walking around in the background-something not likely when there is a bomb threat.
Hammer Down - S6-E7
Visible crew/equipment: Season 6, episode 7 "Hammer Down": Just after Mac and Ray have finished briefing the other officers as they are about to begin a chase, there is an actor's red T-mark on the floor, visible just as the officers begin to walk towards the scene. (00:34:55)
Visible crew/equipment: While Mac and Stella are speaking to Heather and Scott, the couple who reside in 9C, Scott tells them everything that transpired with the man from the elevator, and at the start of the flashback, a blue T-mark is visible on the floor. (00:31:05)
Visible crew/equipment: When Delafont tells Mac, "None of it would have happened if he delivered what he promised," Jo figures out the connection between the cases. It then cuts to Jo with the Post-its, and at the start of the following wide shot, as she turns to walk over to the computer screen with suspects, a red T-mark is visible on the floor. It becomes visible again in a following shot. (00:35:30)






Suggested correction: Theoretically correct, but it can be argued that the only evidence present is the bullet (which has DNA and prints burnt off when fired) and the body (which can only be handled by the MEs) gloves are not required.
Andy Benham ★
What utter rubbish. No CSI would enter a crime scene without first putting on latex gloves - it is a carved-in-stone rule.
Exactly. Since Mac, Stella and Danny were processing a crime scene, they would need to wear gloves because without them, they would have contaminated a crime scene by not only getting their fingerprints over everything but, if one of them got a cut or scrape, their DNA would also be thrown into the mix and any defense attorney can call them out on their carelessness and have any evidence thrown out.