In the latest episode, a police officer shot dead a suspect because of a gun but then they couldn't find a gun.
The father of the dead man shows up at the station and takes people hostage. It's a crisis situation. And the hostage forces want to storm in and not listen to the police.
Carrie eventually is able to locate the gun via her great memory and solid detective work. The police officer has already accepted that there wasn't a gun. He had a really good scene with Jo -- that's Jane Curtain's character.
In fact, that was my favorite scene. Cops are taken hostage because the dad's mad at this police officer and no one really has time for him or anything and he's spiraling and ends up in the morgue and Jane comes in and she has to tell him he can't touch certain things (evidence) but she also makes it clear that she wants to help. I really am glad that they added her to the show.
Here's C.I.'s "Iraq snapshot:"