警 - admonish, commandment

Metropolitan Police Department

warning; caution; admonition

police station

prefectural police

alarm bell; fire bell

police officer; policeman; policewoman

alarm (fire, burglar, railroad-crossing, etc.); sensor

National Police Agency; NPA

prefectural police (Osaka or Kyoto)

police superintendent

bodyguard; escort

horn; alarm; whistle; foghorn