I've been on probation for a year now and have a total of 8 years on probation. I have to see my PO once a week. This is how the drug testing works:
1:depending on your compliancy and trust with probation officer will determine how often he'll drug test you. If they are suspicious of you they will most likely drug test you every time you come in. If they trust you they may rarely drug test you.
2: when they do drug test you the standard test cost $$7-$8 dollars. It's the regular old dip stick drug test. The immuno-analysis drug test.
3: if you pass that there will be no more further testing. But if you test positive for something, they will do an additional GC/MS drug test. It can detect any chemical in your system. Any medication. It detects everything. They can tell the difference between Xanax and ativan, Ritalin to adderall. This test costs $42.
3: if you can't pee when they do a drug test they will do a hair follicle drug test. They rarely ever do this because of cost.
4: they always want their probationers to work or go to school. And do your community service. If you are fully compliant with all the probation terms over a consistent period of time, you can go back to the judge and get your probation expunged.
Probation officers are very observant of their probationers. Be careful what you say.