Since when is making anti-Jewish or anti-Israel remarks a crime? The PC world we live in is patrolled by the thought police. In the real world, groups, ethnicities, races, religions, etc. are constantly being attacked, including by people of the same groups. What has Gibson done that has had any real impact on Jews or Israel? He is not a member of the government nor in a policy making position. Many of the same people who attack Gibson were defending the Dixie Chicks.
its not a crime. we are simply trying to assess whether it occurred, with evidence over and above the police report - either an admission, or the police car video/audio tape.