master-at-arms

noun4

1. •
   An officer in a fraternal or similar organization charged with maintaining order.
2. •
   (UK, Navy) A warrant officer or chief petty officer responsible for discipline aboard a naval ship.

   • Episode 12, The Cyclops Then he was telling us the master at arms comes along with a long cane and he draws out and he flogs the bloody backside off of the poor lad till he yells meila murder.
3. •
   (US, Navy) A petty officer responsible for law enforcement, antiterrorism, force protection, and expeditionary warfare.
4. •
   (UK) A commissioned officer responsible for overseeing all fitness training in subordinate units.