De minimis non curat lex meaning

A practical shorthand for when courts, tribunals and regulators will not entertain claims or enforcement where the breach, loss or interference is so trivial that no remedy or action is justified. It sets a materiality threshold, rather than providing a standalone defence. This is a Latin common-law maxim, not defined by a single statute, and is applied through case law and discretion across multiple contexts. Typical uses include: - Civil litigation: nominal or no damages for negligible loss; minor contractual breaches not justifying termination; nuisance or trespass claims failing where the interference is insubstantial. - Intellectual property: copying that is not a “substantial part” is often described as de minimis and will not infringe copyright or database right. - Criminal law and regulation: marginal conduct may fall outside an offence definition, or be screened out on public interest/prosecutorial discretion grounds. Usage is broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland. In Irish/EU competition and State aid, “de minimis” also denotes formal thresholds for agreements of minor importance and small subsidies; in the UK, similar concepts appear in CMA guidance and under subsidy control (e.g., minimal financial assistance), though the Latin label may not be used.