http://www.legislation.gov.uk/id/ukpga/1979/53

http://www.legislation.gov.uk/ukpga/1979/53/section/4

Charging Orders Act 1979

An Act to make provision for imposing charges to secure payment of money due, or to become due, under judgments or orders of court; to provide for restraining and prohibiting dealings with, and the making of payments in respect of, certain securities; and for connected purposes.