They can and do check for levels of THC in your system. Out here in Ohio the courts will be lenient on you dropping dirty if they see your levels coming down. I'm not sure if I can explain it right, but I'll try- on the common tests that have a 50mg cutoff, you are allowed to have that much THC in your system to be considered neg. Now if your over that number those are your levels. I've never had my levels tested but say that your levels are 120mg one drop and the next drop you come in, it will be about 80mg-thats how they can see that they are dropping.

My best advice dealing with the Criminal Justice system and studying it-don't test them!!! Violation can mean jail time, depending on your situation. Probation is not a right, it is a privledge. If he said that he won't violate you if your levels are going down, stop smoking! Hopefully your probation isn't too long and you can pick up where you left off. Dilution will make them question you, some POs don't go for it period! I was on pre-trial supervision once and used a detox drink to pass. LUCKILY I was taking a few meds at the time because my urine was so yellow they werent going to take the sample. I got lucky with a real cool Pretrial Officer, and he knew my meds and took it anyway.

Don't chance it though-as much as they want you to stay out of trouble and help you reform, they will send your ass to jail. Hope it helps