Crown prosecutor 
noun
(In England, Wales, and Canada) a lawyer who acts for the Crown, especially a prosecutor in a criminal court. In Canada also called Crown attorney.The article accused the Crown prosecutor of addressing the Chief Justice by his Christian name....
- A Crown prosecutor was forced to apologize to a provincial court judge after walking out of her courtroom in frustration over a ruling.
- A North Vancouver provincial court judge declared a mistrial in an attempted murder case Friday because police did not provide two pages of a statement made by the complainant to the Crown prosecutor.