Qui tam
LEGAL TERM IN UK AND US LAW
Qui tam action; Jus tam; Qui tams; Writ of qui tam; Qui Tam
In common law, a writ of qui tam is a writ through which private individuals who assist a prosecution can receive for themselves all or part of the damages or financial penalties recovered by the government as a result of the prosecution. Its name is an abbreviation of the Latin phrase qui tam pro domino rege quam pro se ipso in hac parte sequitur, meaning "[he] who sues in this matter for the king as well as for himself.