The type dimension of the Postmortem Toxicology Testing market is anchored by four primary analytical platforms: immunoassay, chromatography, mass spectrometry, and biosensor technologies. Immunoassays, valued for rapid screening, dominate the low‑complexity segment and contribute roughly 30% of total revenues, driven by high case volumes in routine forensic labs. Chromatography, encompassing gas and liquid phases, offers enhanced separation capabilities, accounting for about 25% of market size as it underpins confirmatory testing protocols. Mass spectrometry, particularly tandem MS, delivers the highest specificity and sensitivity, representing the premium segment with an estimated 35% share, reflecting its adoption in high‑stakes investigations requiring definitive compound identification. Biosensor approaches, still emerging, capture the remaining 10% as they gain traction for point‑of‑care and field‑deployed scenarios. Collectively, these types delineate the market taxonomy, each tier contributing distinct value streams that together shape overall market growth and investment priorities.