jerusalem jewish ultra-orthodox demonstrators protest arrest prospective army conscript community clash police jerusalem sunday eight men detain police say police use water canon mount officer disperse protest briefly turn violent near jerusalem military recruit office lie edge one city ultra-orthodox neighborhoods although ultra-orthodox seminary students gain exemption military service religious ground must obtain exemption conscription procedure police say protest prompt man arrest refuse turn recruitment last week israel supreme court rule part conscription law exempt seminary students unconstitutional give government year resolve matter jewish israelis men women call military service turn 18. police spokeswoman luba samri say protesters block streets throw stone police officer video footage show officer kick punch push demonstrators drag across street ultra-orthodox protesters arrest violent clash jerusalem