Elsie Law's Daily Dose Of The Law

According to The Criminal Law Handbook, a "Petty With a Prior" can be grand theft.

"A prior conviction for petty theft can elevate a second charge of petty theft from a misdemeanor to felony grand theft. If the prosecution intends to use the prior conviction as the basis of a more serious charge, the complaint or information must refer to the prior conviction, a prosecutor might also elevate a petty theft charge to a felony by charging the culprit with burglary, alleging that the culprit entered a shop with the intent to steal merchandise." -From, "The Criminal Law Handbook" By: Bergman & Berman-Barrett