Continuity mistake: The 6:00PM-7:00PM episode ends when it is still light outside. The 7:00PM-8:00PM episode begins when it is completely dark (no sunset/dusk/twilight) The show is supposed to be in "real-time" but as the sun goes down it gradually gets darker, it does not just become dark from one second to the next. Also, the California presidential primary takes place in June. It is not even close to dark at 7pm in June.
Continuity mistake: Near the end, the detectives give Hawkins the murdered woman's manuscript to read and compare. The stack of papers they give him is easily 300-400 pages thick and held together with a large binder clip. Moments later, in a fit of anger, Hawkins throws the manuscript in the air and papers fly everywhere. The problem is that he throws no more than 50 pages in the air.
Continuity mistake: When Bug speaks with the beautiful widow the second time, about performing a noninvasive autopsy on her husband, her long hair continually changes position in the shots that face her.