duty officer 
noun
An officer, especially in the police or armed forces, who is on duty at a particular time.The duty officer ordered police not to confront the offenders but to call for back-up from nearby stations....
- If cells reach capacity the duty officer informs other officers to take suspects to neighbouring boroughs.
- After the word went out of the motorcyclist's death, the gun-totting prince went to the local police station and threatened the duty officer with dire consequences if the incident was made public, according to the reports.
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- wolf snake
- Wolfson, Sir Isaac
- wolf spider
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- wollastonite
- Wollaston, William Hyde
- Wollongong
- Wollstonecraft, Mary
- Wolof
- Wolsey, Thomas
- Wolstonian
- Wolverhampton
- wolverine
- Wolverine State
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- -woman
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- woman-child