§ 106. Powers of members of municipal and volunteer agencies to detain
for misdemeanors or infractions. Any person who is a member of a
municipal or volunteer agency, in the course of his duty as such and
while wearing or displaying a distinguishing brassard or other insignia
indicative of authority, may stop and detain any person on account of a
misdemeanor or infraction committed by such person in the presence of
such member, and may forthwith turn him over to a peace officer who may
arrest him without a warrant on the charge of committing the violation
constituting the misdemeanor or infraction.