set a thief to catch a thief en · VERB
Meanings
-
To employ an unscrupulous person in order to catch another unscrupulous person.
The morality of setting a thief to catch a thief passes muster in the English force; but they do these things better in America. Pinkerton's system for the detective police in America is vastly superior to the British system.
1866, Norman Macleod, editor, Good Words, page 415:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| sets a thief to catch a thief | Number=Sing, Person=3, Tense=Pres | lexicographic | |
| setting a thief to catch a thief | Tense=Pres, VerbForm=Part | lexicographic | |
| set a thief to catch a thief | Tense=Past, VerbForm=Part | lexicographic | |
| set a thief to catch a thief | Tense=Past | lexicographic |
Relateds
poacher turned gamekeeper · fight fire with fire · it takes one to know one · honor among thieves