DE PROPRIETATE PROBANDA, Eng. Practice. The name of a writ which issues in a case of replevin when the defendant claims property in the chattels replevied, and the sheriff makes a return accordingly. The writ directs the sheriff to summon an inquest to determine on the validity of the claim, and, if they find for the defendant, the sheriff merely returns their finding. The plaintiff is not concluded by such finding, he may come into the court above and traverse it. Hamm. N. P. 456.