noun
safety division; security division; public peace department
Refers to a section within an organization, especially the police, responsible for safety, security, or public order.
警察署の保安課に相談してください。
Please consult the safety division of the police station.
彼は会社の保安課で働いている。
He works in the security division of the company.
警備課 focuses on guarding and physical security, while 保安課 has a broader safety and public peace scope.
Compound of 保安 (ほあん, 'safety, security') and 課 (か, 'section, division').