# set a thief to catch a thief

> English word · Verb

## Definitions
1. To employ an unscrupulous person in order to catch another unscrupulous person.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/set-a-thief-to-catch-a-thief