Talk to a criminal defense attorney about cleaning up the criminal record. Even an infraction can damages your prospects for admission to med school and other professional educational programs leading to State licensing, and State licensing agencies may deny a professional license for any criminal conviction. Theft and theft-related offenses are especially troubling to State agencies and the feeder graduate programs.
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It certainly could cause some problems for you. Theft charges are especially troublesome, as the other attorney said. I suggest getting the conviction expunged under 1203.4, which is available on infractions now. It's not a real complicated procedure, but does take some time, depending on the court. Good luck.