Legal Question in Criminal Law in California

No attorney on this site can ethically offer you any specific legal advice, nor educate you how to represent yourself pro per. We can only point you in the right general direction as to what you can and can't do. With that, you will have to start by researching in the CA Code of Criminal Procedure and the CA Evidence Code at the county law library, and then do additional case law research to see what appellate courts have ruled on cases similar to your special facts. Attorneys get paid to do this 'stuff' after spending several years being educated in law school classes.