On 16th July, the Home Office published UK Visas and Immigration guidance for staff on the CTA, including its legal basis, instructions and requirements for people travelling to and within the CTA and in-country encounters. It explains that the CTA is an administrative arrangement between the UK, Ireland and the Crown Dependencies (Isle of Man, Guernsey and Jersey) which is implemented in UK domestic law in statute. The Crown Dependencies are not part of the UK but are self-governing dependencies of the Crown. This means they have their own directly elected legislative assemblies, administrative, financial and legal systems and their own courts of law. The CTA was developed to facilitate the principle of free movement for British and Irish citizens between the UK, Ireland and the islands. It ensured that British and Irish citizens continued to benefit from a mutual enjoyment of rights. There are no routine passport controls on routes from within the CTA to the UK. The UK approach, based on the UK legal framework, is for border checks to be undertaken at the first point of entry to the CTA.