qui tam action

noun

Legal Definition of qui tam action

: an action that is brought by a person on behalf of a government against a party alleged to have violated a statute especially against defrauding the government through false claims and that provides for part of a penalty to go to the person bringing the action the whistleblower brought a qui tam action against the contractor for presenting fraudulent claims for payment

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“Qui tam action.” Merriam-Webster.com Legal Dictionary, Merriam-Webster, https://www.merriam-webster.com/legal/qui%20tam%20action. Accessed 14 May. 2021.

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