Episode #2.8 - S2-E8
Continuity mistake: In the first examination of the body, Fidel photographs the wound. Poole appears behind him and asks "So?"Behind Poole, you can see the air conditioning unit, turned off and with its grid closed. Seconds afterwards, Poole peeks above the desk and the plot point establishes that the A/C is running. (00:04:35)
Episode #2.8 - S2-E8
Continuity mistake: Fidel grabs the envelope with his results. Brief reaction shot on Dwayne and Poole, and suddenly the beer bottle and Best's cell phone have rotated. (00:43:00)
Episode #2.8 - S2-E8
Continuity mistake: In the whimsical finale, Richard rips away from Dwayne's hands the envelope with the test results; the envelope switches side multiple times between shots - just look at the stampings and how they change position from cut to cut. (00:42:40)
Episode #2.8 - S2-E8
Continuity mistake: When the killer walks away from the victim, his right arm touches the carpet in the first shot, is above it in the next, and was even further distant from it in the one before the opening roll of the episode. (00:40:00)
Episode #2.8 - S2-E8
Continuity mistake: When the murder is shown, the killer grabs the gun with both hands at first, then the close-up shows them pick the gun from the drawer with just the left hand. (00:39:40)
Episode #2.8 - S2-E8
Continuity mistake: During the denouement, DI Richard Poole holds the evidence bag with the murder weapon showing it to his audience. The bag is held differently between shots, as the blue bands make easy to spot. (00:37:35)
Episode #2.8 - S2-E8
Continuity mistake: Richard lifts the soft paper towards the UV light picking it with his tongs by the far corner - in the close-up the strip is pinched right in the middle of it, though. (00:24:25)
Episode #2.8 - S2-E8
Continuity mistake: In the scene with Richard bossing Camille around with his brisk finger-waving, she is pinning in place the red tape using just two fingers pointed against the book or her hand hovering on top of it, clenched in a fist, depending on the angle. (00:09:50)
Episode #2.8 - S2-E8
Continuity mistake: Checking out of the crime scene, Richard puts the plane ticket down after the interview with the PA is over. In close-up the ticket lands diagonally across the bottom side and the left side of the organizer, but in the shots of the room the ticket is placed on the top side of the page. (00:09:00)
Episode #2.8 - S2-E8
Continuity mistake: Entering the house after the gunshot, Camille holds back Vicky Woodward with both hands, becoming one hand in the next shot. (00:03:00)
Episode #2.8 - S2-E8
Continuity mistake: One of the very first beautiful people shown in the episode is a woman with very short and very blonde hair, wearing a colourful dress as she stops to chat up a woman in a polka dot dress. The camera pans outside and finds Camille who is reaching Poole. And next to him, the same lady is already there, chatting with a different person in a totally different part of the property. (00:00:10)
Answer: There's probably no particular reason. Sets and props on long-running TV shows often change as needed and for various reasons throughout a series run.
raywest ★