Another question on police?

the recent disgraceful behaviour by so called British Muslims on the return of the Anglian regiment in Bedfordshire,,,why were the police protecting them from the so called "mob"when they should have been arresting them under section 5 of the public order act,,, i await the next bigot removing this question,like my last one as "the truth hurts don,t it!"these people should have their British pports revoked,throw em back where they want to be