Ok but here’s the thing, you don’t access the data of a floppy by opening it like an oyster, so if he thought it was CP then he just purposefully helped destroy evidence and cover it up for the perpetrator.

The standard process is “check data, if CP, controlled delivery, arrest recipient.” They do that already both for CP and drugs shipped through the mail when found, at the least they seize it and send you a “love letter” saying " come pick up your drugs" which obviously you ignore.

And you can also pull the little window back and look in and go “yup, them’s is floppy guts” and let it snap closed, verifying it visually. That is assuming the child officer has ever seen a floppy but still, he’d more likely have seen a floppy than a mini cd, nobody used those even when they were contemporary.