forensic /fəˈɹɛn.zɪk/ adjective5 •Relating to the use of science and technology in the investigation and establishment of facts or evidence in a court of law.Fire investigators […] and forensic chemists are combing through fire sites [the 16th Street Baptist Church bombing], interviewing witnesses, and following leads. — 1996 •Precise, thorough, or highly meticulous, by analogy with a scientific legal investigation.It [the judiciary] had been the forum before which the highest forensic discussions had been held, […] — 1885 •(old-fashioned) Relating to, or appropriate for, courts of law; suitable or adapted to legal argumentation.Varus trusted implicitly […] to the interest which they affected to take in the forensic eloquence of their conquerors. — 1851 •Relating to forms of disability associated with criminal risk.patients with forensic needs •(no longer used) Relating to, or used in, debate or argument.