It should be the same, best that you confirm with the attorney who assisted you with this as they can give you the best and most accurate info since they made the request in the motion/petition that was filed with the court. My bet is it was definitely an expungement.
William Daley (619) 238-1905 / www.lawofficeofwilliamdaley.com
It is unlikely that they are one and the same. I would hire a criminal defense attorney in order to file to expunge the records.
The information provided in this answer does not create an attorney-client relationship and is not considered to be legal advice.
PC 1203.4 is a dismissal. However, a dismissal after a conviction. Read the statute, it is beneficial for employment in the private sector, but a public entity or professional license will regard it as a conviction. It is not an eraser but does have some value.
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This is an issue where California's law is somewhat different from the law in other states. California law does not offer true "expungement" in the nature of erasure or deletion of adult conviction records. The post-conviction dismissal you obtained is all that is available under California law unless you obtain a court order determining that you are factually innocent -- an order that requires you to meet a very high factual standard distinct from the issues of P. C. 1203.4 dismissal.
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