This Practice Note looks at the principle of abuse of rights in EU free movement law, in situations other than alleged ‘marriages of convenience’. It examines briefly the rights that migrants enjoy and at what moment member states can question who is admitted to their territory in the context of possible abuses of these rights (including whether measures can be taken on the basis of alleged systematic abuse). It also looks at the legislative responses by the UK government to perceived abuse of rights (including provisions in relation to Surinder Singh cases and the verification of a right to reside). The Practice Note does not cover the separate but related issue of fraud.