1851 Nov. 844/1 Nothing but soldiering or police spying seems left to the majority of the educated classes.
1935 28 May 9/4 He had a feeling of the utmost repugnance against the whole system of police spying.
2003 (Nexis) 19 Sept. b6 The administration was drafting a Patriot Act II that would allow secret arrests, police spying, unchecked power to deport foreign nationals.