Attributive Designating a court order which requires the defendant in proceedings to permit the plaintiff or his or her legal representatives to enter the defendant's premises in order to obtain evidence essential to the plaintiff's case. Usually in "Anton Piller order". Also absol.: such a court order.
1970s; earliest use found in The Times. From the name of Anton PillerKG, German manufacturers of electric motors, who fought a case against Manufacturing Processes Ltd. in 1975, in the course of which such an order was granted.