This Practice Note considers the allocation of jurisdiction within the UK under the Civil Jurisdiction and Judgments Act 1982 (CJJA 1982). It considers the scope of that regime and the conditions which need to be met for the regime to apply and considers the interaction with Regulation 1215/2012, Brussels I (recast) (the Regulation). It covers the general rule as well as exceptions to that rule. Finally, it considers forum conveniens in this context.