A law enforcement officer, such as a sheriff, who is responsible for maintaining civil peace.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "peace officer" in a sentence
"A disgruntled peace officer could make it difficult for Zoë to approach potential subjects or access semirestricted databases."