Spoliation refers to the destruction, alteration, concealment or loss of evidence that is, or may become, relevant to legal proceedings, particularly after a duty to preserve that evidence has arisen. It commonly arises in civil litigation, regulatory investigations and criminal proceedings where documents, electronic records, CCTV or physical objects are not properly preserved.Across England & Wales, Scotland, Northern Ireland and Ireland, “spoliation of evidence” is largely a descriptive term rather than a defined statutory concept. Its consequences are shaped mainly by case law and procedural rules on disclosure, discovery and the court’s case management powers.Key legal issues include whether the spoliation was deliberate, reckless or negligent, and whether it prejudices a fair trial. Courts may draw adverse inferences, impose costs sanctions, strike out a claim or defence, or refer the matter for disciplinary or criminal action (for example, perverting the course of justice or contempt of court).In practice, spoliation underpins duties to implement litigation holds, suspend routine document destruction, and preserve electronically stored information. It is central to risk management, compliance and evidential strategy in contentious matters throughout the UK and Ireland.