Four men were released on bail and were ordered to return to a police station Monday, when they may be charged with assault, a police spokesman said.
The police spokesman was personally involved in the arrest.
( z1 involve :ARG1 ( z2 person :ARG0-of ( z3 have-org-role :ARG1 ( z4 police ) :ARG2 ( z5 spokesman ) ) ) :ARG2 ( z6 arrest ) :ARG1-of ( z7 personal ) )