SACRAMENTO (CBS13) – A former Sacramento Police officer accused of lying about dozens of DUI arrests is now facing criminal charges.

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District Attorney Jan Scully announced the charges against former officer Brandon Mullock this morning.  Mullock is facing 34 counts of perjury and filing a false report by a police officer.  He surrendered himself this morning.

The allegations came to light last year after discrepancies surfaced between Mullock’s written reports and his dash cam video. 

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The District Attorney had to dismiss 79 cases in which Mullock was the principle witness.

Most of the cases were DUI related, but some include domestic violence cases in which suspects had been to court, pleaded guilty and were locked up.

Mullock resigned in August of 2010 after three years on the police force.

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If convicted on all counts, Mullock could be sentenced to 23 years and 8 months in state prison.