During the forensic examination of the inside of the taxi it can be seen that the ultraviolet lamp being used by the technician isn't providing any illumination. The blue light it's purportedly casting is instead coming from a static source in the taxi's rear footwell.
In the intro to the episode, when the suspect runs into the elderly gentleman, in the following scene, he has blood on his jacket that wasn't there when he's pushed back. It's there after the suspect runs after hitting the taxi.
When Benson and Stabler are getting up off the floor of the church after handcuffing the suspect, Daniel Varney, you can see 2 crew members off to the right of the shot.
When Benson and Stabler are getting up off the floor of the church after handcuffing the suspect, Daniel Varney, you can see set lights lining the ceiling of the church.
Boom and crew member are visible in the reflection of the large window behind Paula Varney in her living room toward the end of the episode.