The major duty for guard police is to ensure the safety of the units or organizations they guard and to guarantee their regular work.

驻卫警察的主要职责是维持驻守机构之安全，保证其工作的正常开展。

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Sometimes they're reluctant to take part in important training such as fire safety classes and child identification programs, which guard against abduction.

VOA: standard.2010.07.22

The safety guard that was on the grinder when it left the factory in 1961 was sawed off some years later.

FORBES: Magazine Article

Lord Wimborne had a positive duty to protect the boy from the cog-wheels by ensuring there was a safety guard or fence.

BBC: UK

The Titans also waived safety Jordan Babineaux and guard Mitch Petrus.

WSJ: AP Source: TN agrees on deals with Levitre, Walker