If I was designing a screen, I’d put the various police guidelines (4 E’s, 6 W’s, ABC etc.) on the player facing side, alongside a list of available resources (forensics, CPU, HOLMES, financial etc.) and a basic description of the spells.
On the GM side: a skill table with regular and hard examples plus any opposed skills, summaries of combat and chase rules, damages, weapons and vehicle stats (I suspect my screen would be several sheets of A3!)