constructive trust

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A trust created by operation of law where one party takes physical possession of property, but is legally required to use that property for the benefit of another party, in the absence of a written agreement.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a trust created by a court (regardless of the intent of the parties) to benefit a party that has been wrongfully deprived of its rights