For over a century, forensic science has concentrated on traces, evidence, and crime scenes. The Logic of Forensic Evidence: A Theoretical Foundation for Forensic Science argues that it has studied the wrong thing. What matters is the “f-transform:” the specific occurrence through which an ordinary object’s material history becomes forensically meaningful.

From this starting point, the book positions forensic science among the historical sciences, such as archaeology and paleontology, and borrows from their three-tiered epistemology. A high-level theory treats evidence as structured change. A middle-level theory describes the natural, cultural, and forensic transformations that link present objects to past events (e.g., crimes). Five operational principles (synecdoche, equifinality, uniformitarianism, exchange, and entropy) articulate what practitioners already apply in current practice, but have never formally codified. Without such principles, the author argues, forensic science remains a set of techniques rather than a fully actualized, mature discipline capable of self-critique. While current reforms in funding, standardization, and training may be able to treat symptoms, they do not properly address these vital underpinnings.

A historical review of U.S. forensic institutions traces how laboratories became organizationally subordinate to law enforcement, a pattern the author calls “professional capture” that has stunted the development of independent theory. Because administrative independence is unlikely in the near term, the book contends that the field first needs its own philosophical and epistemological account of its knowledge to reach its potential as a profession and discipline.

The framework presented in The Logic of Forensic Evidence speaks to practitioners, laboratory directors, policy makers, investigators, students, judges, and attorneys: anyone invested in the scientific legitimacy and public trust of forensic science.

Max M. Houck is an award-winning international forensic science expert with over 35 years of experience in high-profile casework, including the Branch Davidian Investigation, September 11 Pentagon attacks, and the UNABOMBER case, as well as extensive work at the FBI Laboratory. He is among the top 2% of legal and forensic medicine researchers in the U.S., with over 150 publications, and serves as Editor-in-Chief of Forensic Science International: Synergy and on the editorial boards of Nature Scientific Reports and PLOS One. Dr. Houck is a Fellow of the Royal Society of Chemistry and has served on committees for the White House, National Academies of Science, and Interpol, among others.