Meanings

military police brigade (air force)

military police brigade (land army)

warning signal

national rural police (1947-1954)

national rural police (1947-1954)

to make a witty remark

prefectural police academy

prefectural police headquarters

prefectural police

corrupt policeman

official warning (esp. of an impending earthquake)

superintendent supervisor

senior superintendent

chief superintendent (police)

car horn

extendable baton

watching (esp. during an emergency)

cops and robbers (hide-and-seek game)

federal police (US, Brazil, Australia, etc.)

head of a police station