Forensic refers to the application of science to decide questions arising from disputes at law.
Construction may denote the building of structures such as a house, road, or bridge but it may also refer to the way in which something has been built, especially with regard to the type and quality of the design, materials, and workmanship.
Forensic construction is then the application of science to decide questions arising from legal disputes over the way in which structures such as: a house, road, or bridge has been built; especially with regard to the type and quality of the structure, materials, and workmanship. It may more broadly apply to the preparation of evidence by experts in construction technology and practice in any form of formal dispute resolution. Usually this involves the formulation of expert evidence in litigation, arbitration and adjudication and to giving written or oral expert testimony to the tribunal or court.