The Manhattan Precinct map doesn't include the 27th Precinct, the fictional precinct that the police officers from the original Law and Order show are based.
When the victim's husband says, "I want to see him," the boom mic is reflected in the squad room door.
The shadow of the boom mic appears on the wall in the interrogation room, then a few moments later, the boom mic is reflected in the interrogation room mirror.
At about 10-13 in minutes in Munch refers to Benson as BeTon.