Mad Dog is said to pass himself off as a retired sailor, but photos in his home show that he used to be in the U.S. Marine Corps, not the Navy or Coast Guard.
When Tiffany pulls up in her new car, only to leave Deb and Sofia behind, they speed off while the Spin Doctors' "Little Miss Can't Be Wrong" is playing. The show takes place in the fall of 1991, but that song wasn't released until October of 1992. However, the single was actually taken from their album "A Pocket Full of Kryptonite", which was released in August 1991, which fits the time frame of the show.
No matter how busy they are, a forensic technician intern, with only a week's worth of experience, would not be sent to process the crime scene of a potential homicide alone. If an intern was the only one to process a crime scene, their lack of experience and certification could easily be used by a defense attorney to challenge the veracity of the evidence gathered.