There are multiple definitions - click on the translation that matches your context.

警察局长

名词

full

marshal

noun

Definitions of marshal

English

a federal or municipal law officer

The marshal may execute writs and serve process within each county in which the municipality is located, both inside and outside the municipal boundaries.

English

the head of the police department; the head of the fire department

The inspection was approved by the State Fire Marshal.

English

the highest ranking military officer in some jurisdictions; a high ranking military officer

Marshal Walker was appointed as Guernsey's next Lieutenant Governor in October.