How to Frisk Students
It’s not that hard. First you click on a number of students in the bottom-left, and list of all your students will pop up.
Click on any of them and a student profile will open on the right from the list. In that profile look for an (I) (i in circle) – it will open inventory of students. Any contraband will have red background. Right click on it and it will be confiscated.
Now you can keep clicking on a students in the list and go through all students inventories wherever they are.
Here is a screen for some visual:
Note: From my 4 runs so far, contraband is “assigned” at the start of the day. You can even confiscate it before they even arrive. Just pause at the start of the day and check every student’s inventory.