Corrected entry: In the parking garage, Nick Stokes is taking pictures and says he has one picture left then takes a picture of Sara Sidle, but when Warrick comes onto the scene Nick takes a picture of Warrick.
Corrected entry: When Grissom puts Warrick in charge of the shift he asks why he didn't ask Nick since "he's more senior than me". However both Nick and Warrick were promoted to CSI-3 in the first season.
Correction: This probably implies that despite the fact that they were both promoted, Nick was hired first.
Correction: He means he has one more photograph to take of the crime scene, then he is free to take personal photographs. Since he is using a digital camera, he isn't going to run out of film.