Levine currently works as a prosecutor for the Crimes Against Peace Officers Section (CAPOS), which is dedicated to prosecuting those who murder or attempt to murder police officers.

He has been the Deputy District Attorney for Los Angeles County since 2003 Gang Member Ordered to Stand Trial for County Officer’s Murder. The same year, Levine and his detectives built a case against Gerald Mason, who had evaded arrest since 1957 for the rape of a teenage girl, the assault of three other teenagers, and the murder of two police officers. Mason was sentenced to life imprisonment, ending one of the longest unsolved cases in the United States.

As of September 2007, he has a 100% conviction rate. He has been a recipient of several honors from district attorney groups and victim’s rights groups.

Levine attended Loyola Law School.

Levine is the founder of the Krav Maga Association of America and Krav Maga Worldwide.

In 1981, Levine was selected as part of the first group outside of Israel to train in Krav Maga. While training in Israel, Levine was befriended by Krav Maga founder Imi Lichtenfeld. In 1982, Lichtenfeld traveled to Los Angeles to stay with Levine and continue his training. Levine is one of only two recipients of a Krav Maga Founder’s Diploma awarded by Lichtenfeld before his death in 1998. At the time, Levine was the highest ranking instructor in the United States, and had training centers in West Los Angeles, New York City, Chicago, San Francisco, Boston, and Philadelphia. Levine holds a 6th degree black belt in the art.

He is the co-author with John Whitman and Ryan Hoover of Complete Krav Maga, Black Belt Krav Maga, and Krav Maga for Beginners.