See what pot does to your brain, your made up statistics are ridiculous.
Seriously, as a possible recruit to the NYPD, you admit to prior drug use or being fired for disciplinary reasons at a prior job, all you do is take another piece of lined paper and write out an explanation of the situation. You then sit on a chair for 3 hours to wait your turn to get a piss test just like every other applicant.
If it isn’t for hard drugs or some serious issue for prior job termination, it has no affect on the recruiting process, and hasn’t since 2003ish. IF your urine is clean, the process continues.