Do I have a chance of fighting the possession charge since it wasn't my car and it found on my body
I'm moving your question to the Criminal Defense category; someone there will be better suited to assist you.
Your question is not easily answered here without more information and you shouldn't discuss your case online. It is best to discuss the specifics of your case with a criminal defense attorney and you should contact one as soon as possible. Many attorneys offer free consultations.
Attorney answers to questions are for general purposes only and do not establish an attorney-client relationship.
Hire a good attorney. Your attorney may be able to establish that you were unaware of the pot at trial. There may also be suppression issues. An attorney would need to know much more information than provided here to determine exactly what issues exist.
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