An adminicle is a small piece of supporting evidence that helps corroborate another item or prove a fact in issue. In Scots law the term is common in case law and legal writing (rather than statute) and refers to any documentary, circumstantial or testimonial detail that, with other material, advances proof. Typical examples include adminicles of title in property disputes and positive prescription, or documents and circumstances used to strengthen witness testimony. An adminicle carries no special rule on admissibility; its evidential weight is assessed with the totality of the proof and it is seldom decisive on its own.
In England & Wales, Northern Ireland and Ireland the word is largely archaic. Practitioners generally speak of corroborative evidence, supporting evidence, or documents of title. Where encountered in older judgments, deeds or pleadings, adminicle should be read as denoting corroborative or ancillary material only, not a standalone foundation for a claim. The practical significance is to identify items that fill gaps, link strands of evidence and bolster the primary case theory.