The Affair - S1-E4
Continuity mistake: When Ben Matlock rings the doorbell of the Harrison residence, he is standing with his hands behind his back while the door is opening. In the next shot, the door is still opening, but Andy Griffith is standing with his hands by his sides. (00:08:30)
The Affair - S1-E4
Continuity mistake: When Matlock is interviewing the kid poolside, she just came out of the water and wraps a towel around herself without as much as touching her own head. Still, in close-ups, her hair is somewhat dry. (00:14:30)
The Affair - S1-E4
Continuity mistake: When Matlock is talking to Harriet and Christina Harrison Ward after his attempt at re-enacting an alternative route for the murderer, Christina defends herself, saying, "But I was asleep." Matlock answers in the reverse shot, and you can see her pose with a hand in front of her chest that wasn't raised a moment before. (00:18:30)
The Affair - S1-E4
Continuity mistake: Tyler makes his exit from the bar, switching the power off; Kene Holiday pulls the lever down, and you can see him in the darkness go past the man by him and push the door open with a clean way out. In the shot from the exterior, though, he still has to push the man out of the door and goes around him, coming out by the side of the lock instead of the hinges. (00:20:40)
The Affair - S1-E4
Continuity mistake: At the Latino bar, Matlock begins playing pool to look cool with the local gang crowd - it is just as believable as it sounds. The positions of the billiard balls keep changing between shots. (00:30:00)
The Affair - S1-E4
Continuity mistake: When Matlock talks to Sonia after the attempt on Rodriguez's life, Theresa Saldana plays with the wedding ring in different ways as the different angles alternate. (00:33:20)
Continuity mistake: When Professor Tate congratulates Eric Lane for the improved grades, the two have a playful banter, and Tate says he's "happy to be proven wrong." Christopher McDonald has to wipe off some streamers that got in his hair. In the next close-up, he still has streamers on his shoulder despite the fact he brushed them away entirely. A similar mistake happens later on when he is carrying the unconscious professor out of the room; streamers suddenly are all over him from one shot to the next. (00:02:40)
Continuity mistake: When Billings offers Prof. Erskine Tate a nightcap, the confetti on his shoulder changes position and quantity in the close-up on Daniel Davis. (00:03:15)
Answer: I did not see this episode, but YES. Both prosecution and defense lawyers use investigators to search for and uncover evidence that is legally admissible.