In the Duke at the end when Tinny hands Grayson his beer, her glass is 3/4 full and when he takes his first sip her glass has miraculously filled itself.
When Jake speeds past the officer sitting with the radar gun, the officer puts the vehicle in drive when viewed from inside of the police car. A second later, an outside view shows the officer starting to drive out a second time.
When Leslie Bennett is scanning the kegs with the UV light, she is doing so in broad daylight. While she does this, the symbol that she discovers readily shows up, but you can see that it is just painted on and is not showing up because of the UV light.
While Jake and Des are driving to the meet point, you can see the vehicle he is driving make a complete 90 degree right turn. At the same time, Jake slides his hands across the steering wheel as if turning, yet the wheel never moves. The vehicle is quite obviously being towed on a trailer and the tow vehicle is what is making the turns.
Sergeant Bennett goes to Brock's apartment and finds a number of items of evidence related to his murder. She performs the search alone and without backup. A short time later she returns to the apartment, as does one of the suspects, yet the apartment hasn't been processed any further. This is the apartment of a murdered individual in a multiple homicide case. The apartment would be crawling with crime scene investigators gathering additional evidence.