When the SVU team is on the ground searching for the apartment buildings on Central Park West, it is a bright, sunny day. But when Olivia is on the terrace, it's rainy and overcast. But when the scene moves back to the street, it's sunny again. Later when the ambulances come, it's rainy and overcast on the street...but then when Fin asks Olivia how she's doing, it's sunny again.
The position of the gun to the hostage's head changes between camera shots in the same scene.
As soon as Lt. Benson realized she had found the apartment they were looking for she should have notified the command post and requested backup. Instead she went in without waiting for backup or even calling it in, which not only violates standard procedure but violates the direct order of the deputy chief who was in command of the search. As a 25 year veteran of the NYPD and a 19 year veteran of SVU Olivia knows better.