Episode #3.2 - S3-E2
Continuity mistake: There's a close-up of the empty box of chocolates as DI Humphrey Goodman reviews the content of the catering table. The close-up is not from the same arrangement seen in the rest of the scene; the angle is slightly off and it is missing a used towel next to one of the two paper cups. The fork is also pointed in the opposite direction. (00:05:05)