Applications and proceedings before the European Court of Human Rights are handled under Brussels regulation and do not constitute UK domestic court litigation.

• All immigration systems operate subject to international human rights obligations, particularly the European Convention on Human Rights.
  
• Where domestic remedies are exhausted or ineffective, individuals may bring applications before the European Court of Human Rights (ECHR) to challenge violations arising from immigration, residence, removal, detention, or family separation.
  
• ECHR immigration cases commonly engage Article 3 (prohibition of inhuman or degrading treatment), Article 6 (fair hearing), Article 8 (private and family life), Article 13 (effective remedy), and Article 14 (non-discrimination).
  
• The ECHR does not itself quash national decisions. Instead, it issues binding judgments finding Convention violations. Under Article 46 of the Convention, respondent States are required to take corrective action, which may include reopening, annulment, or quashing of unlawful immigration decisions at national level.
  
• ECHR litigation may involve applications, written observations, Rule 39 interim measure requests, and coordination with domestic proceedings. Findings often result in practical remedies such as protection from removal, restoration or grant of lawful status, reunification of families, and compensation.

Immigration tiers in both the UK and EU are subject to human rights protections under the European Convention on Human Rights.

Violations may be escalated to the European Court of Human Rights, leading to binding findings and corrective domestic remedies.