The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

before they send FORENSIC doctors
to interrogate him
Money Heist Season 3, Episode 6

I need the FORENSIC team and a UIT unit.
Money Heist Season 3, Episode 7

I want the FORENSIC team there!
Money Heist Season 3, Episode 7

from the FORENSIC psychiatry department.
Shall I read it to you?
Money Heist Season 1, Episode 8

I want the FORENSIC tests results
on the Seat Ibiza now.
Money Heist Season 1, Episode 8