What's your question here? If "man" wants to go to trial, it's his right to call you as a witness in his defense. Or to testify in his own defense. Or both. If you choose to do so, you may testify under penalty of perjury that it was your marijuana and he had no possessory interest in it. If the jury finds your testimony credible, he may be found not guilty. He may have other possible defenses, such as possession but no intent to sell. Or even possession of less than an ounce with the intent to furnish to someone else for free (a misdemeanor). I would hope that he has an attorney that is familiar with the potential defenses to this crime. If so, that attorney is certainly in a better position to answer your "question" than anyone here.
That's pretty much what the criminal justice system is about. A defendant is charged with a crime. The prosecutor is obliged to prove the defendant guilty of this crime beyond any reasonable doubt. If the defense raises a reasonable doubt as to the defendant's guilt, the defendant should be found not guilty. Hopefully this concept is not news to the average American citizen...
Keep in mind that you can be charged with a felony if you tell people that you possessed marijuana with the intent to sell it. Hopefully you'll seek the advice of an attorney before you step up to help your "man."
Any statements I make in these forums (fora?) should not be taken as direct legal advice, merely informed guidance. This is true due to the anonymous nature of this venue, and the incomplete information which is invariably provided by the questions. It is imperative that you consult directly with an attorney regarding your specific situation before acting on or relying on anything represented here. Period.
I wonder if one of two things happened here:1) he copped to it being his, before your or/and 2) he has a prior record?
My name is Stephen R. Cohen and I have practiced over 38 years and can be reached at 213-819-1171. I practiced mainly in Los Angeles and Orange County, California. I am not seeking clients from existing relationships with other attorneys, and give only limited advise over the phone (the phone is primarily used to set appointments), these services do not create an attorney client relationship. I apologize for mispelling< as I am a lousy typist, My answers may offend as I do not believe in pulling punches or sugar coating the truth. Further regarding courts in other states my opinions are largely based on logic and what I think is the modern trend which is to consider the needs of the child.