Continuity mistake: Steele props up the deceased Kalil and puts a cigarette in the dead man's hand. When the camera angle reverses, the cigarette moves to a different position: first it's between fingers two and three, then it's between three and four. (00:25:45)
Testimony of Evil (Dead Men Don't Laugh) - S1-E6
Continuity mistake: At the start, the glass on the left is poisoned. The guy picks up the glass on the right, but still ends up dying.