VALENCIA, CA - SEPTEMBER 04:  NCIS cast members (L-R) Michael Weatherly, Lauren Holly, Brian Deitzen, Pauley Perrette, David McCallum, Sean Murray, Cote de Pablo, and Mark Harmon at the NCIS 100th Episode Celebration at Valencia Studios on September 4, 2007 in Valencia, California.  (Photo by John Shearer/WireImage)
TV - Movies
Things We Ignore
Gibbs has a gargantuan superiority complex and smacking his employees upside the head is a normal occurrence. The show and its characters make it out to be like casual physical abuse is Gibbs' way of showing paternal guidance — with a quick move that says, "Nope, try again."
Smacking Employees
Abby and Ducky's jobs wouldn't exist in real life: A forensic analyst and medical examiner wouldn't work within an NCIS building; they wouldn't have a direct line of communication to an NCIS agent; and there wouldn’t be only one of each. A real-life NCIS field office would work with local state or county medical examiners.
Heavily Exaggerated Jobs
In the very first episode of "NCIS," the death of a Marine on Air Force One triggers a mess of jurisdictional complications. While NCIS would actually have the jurisdiction to take custody of the body in the real world, it wouldn’t have the right to snatch the president’s plane to ensure it keeps custody.
Stealing Air Force One
One of Gibbs' quirks is his lengthy list of personal and professional rules. Some of these rules make sense in the workplace like rule number two, "Always wear gloves at a crime scene." However, some rules are weird and random like rule 22 that says, "Never mess with a Marine's coffee if you want to live."
Unusual Rules
When it comes to forensics, contaminations are one of the worst mess-ups that can happen to an investigation. Ducky, who is supposed to be the best at what he does, ought to know how not to contaminate a forensic lab or spread unsanitary materials, but in one episode he enters Abby’s area still in his surgical gown, covered in blood.
Forensic No-No’s