(1) A judgment to which this section applies shall not be registered under Part II of the Administration of Justice Act 1920 or Part I of the Foreign Judgments (Reciprocal Enforcement) Act 1933 and no court in the United Kingdom shall entertain proceedings at common law for the recovery of any sum payable under such a judgment.

(2) This section applies to any judgment given by a court of an overseas country, being –

(a) a judgment for multiple damages within the meaning of subsection (3) below

(3) In subsection (2)(a) above a judgment for multiple damages means a judgment for an amount arrived at by doubling, trebling or otherwise multiplying a sum assessed as compensation for the loss or damage sustained by the person in whose favour the judgment was given.

6.--

(1) This section applies where a court of an overseas country has given a judgment for multiple damages with the meaning of section 5(3) above against

(a) a citizen of the United Kingdom

(b) a body corporate incorporated in the United Kingdom

(c) a person carrying on business in the United Kingdom,

(in this section referred to as a "qualifying defendant") and an amount on account of the damages has been paid by the qualifying defendant either to the party in whose favour the judgment was given or to another party who is entitled as against that qualifying defendant to contribution in respect of the damages.

(2) Subject to subsections (3) and (4) below the qualifying defendant shall be entitled to recover from the party in whose favour the judgment was given so much of the amount referred to in subsection (1) above as exceeds the part attributable to compensation; and that part shall be taken to be such part of the amount as bears to the whole of it the same proportion as the sum assessed by the court that gave the judgment as compensation for the loss or damage sustained by that party bears to the whole of the damages awarded to that party."