The spelling of two character names changes between Parts I and II. In Part I, Ken Briscoe spells out a name as Helen Katish, K-A-T-I-S-H, reading the name from his written record. (Actress Nahanni Johnstone is listed only in the opening credits.) But in Part II's subtitles and the end credits, the name changes to Katisch with a "c" added. Also in Part I's end credits, Amy Hohn is listed as Delea. But in Part II's end credits she's Delia Woodruff.
Detective Munch describes a Black Talon bullet as a "cop killer." Actual "Cop Killer" bullets are armor-piercing rounds, designed to penetrate police officers' body armor. Black Talons are hollow-points, which sacrifice penetration, in order to inflict greater soft tissue damage.
At the very end of the episode, as the credits appear, Captain Cragen is walking away from Sergeant Munch. You can see that the direction Cragen is walking ends in a dead end consisting of a U-shaped bench, meaning there would be no where for him to go. Presumably had the scene continued Cragen would have run into the bench.