decis execut committe decemb cross border polic cooper area crime prevent detect sch rev execut committe regard articl agreement implement schengen convent stress schengen state improv crime prevent detect mean closer cooper confirm import mutual polic assist pursuant articl schengen convent attain object convinc case coerciv measur requir polic cooper execut author judici author immedi order ensur delai process request thwart outcom investig reason oper secur legal certainti draw common list defin scope polic cooper determin channel transmiss polic request decid accord object set articl schengen convent schengen state endeavour bring polic cooper fight crime level meet rapid effect action crimin oper internation end import draw common list activ request undertaken law schengen state case prior consent judici administr author mandatori prejudic control exercis matter judici author agreement list reach definit decis central group prejudic common list adopt pursuant point schengen state list purpos inclus nation fact sheet handbook crossbord polic cooper activ mean articl convent request undertaken accord nation law polic author subject condit pursuant paragraph nation legal order permit schengen state increas polic cooper area crime prevent detect conclud bilater agreement activ addit measur list refer point scope mutual polic assist intervent judici administr author bilater agreement polic request transmit compet author evid crimin proceed inform transmit simplifi work group agreement work group iii submit central group annual report base experi contract parti progress made improv polic cooper prevent detect crime berlin decemb presid schapper