The habitual marijuana use and use of a hallucinogen is going to be (at a bare minimum) a HUGE hill to overcome.
You would first have to find a department with standards such that you are not automatically disqualified.
THEN you would have to be the best applicant for the position out of everyone who applied. Many of these people will have no drug use in their pasts at all.
I applaud you for turning your life around, and I'm sure that you'll find a way to contribute to society in a way that you enjoy, but the fact is that it is probably not going to be in Law Enforcement.
-Citicop.
Sometimes there's Justice...
and sometimes, there's Just Us
1*
In memory of DCLaw- EOW@RealPolice 02-20-2007.
We won't rest 'till we find the mutt.