It is the classic "as you know" trope... Like in CSI when the investigators are explaining to each other the fine points of electrocution, decomposition and firestarting. They're all pros in their field, they know the stuff. And you don't expect real detectives to have this exchange:
"I managed to get a readable license number from the surveillance video."
"Great. Now we only have to check it on the motor database to come up with the owner."
"Yes, and then we can run the name through the police database to check their criminal record."
Rather than:
"Hey, you remember that Camaro in the 7-11 lot? Turns out the owner has a criminal record the length of Interstate 76."
Unfortunately, two logical steps are missing and the screenwriters' handbook rules that viewers are idiots. Sadly it's often true - not simply idiots, but many have the attention span of a goldfish with ADHD on drugs. Raise their hands those who, while watching some thriller movie or such haven't heard someone asking in a low voice (hopefully low) stuff like "Hey, I don't understand. Who's that guy? Is he dead? And why everybody is calling him by a different name?"