Science
Forensic Science Deep Dive Quiz
Crime scenes and cutting-edge science — how well do you know forensic investigation?
Crime scenes and cutting-edge science — how well do you know forensic investigation?
DNA fingerprinting was first used in a criminal case in 1986, leading to both an exoneration and a conviction. From that landmark moment to modern digital forensics, the field has transformed how justice is served worldwide. This deep dive quiz tests your knowledge across 50 challenging questions spanning DNA analysis, ballistics, toxicology, forensic entomology, crime scene reconstruction, and the landmark cases that shaped the discipline.
Each round presents 10 multiple-choice questions at a hard difficulty level. Select your answer, read the detailed explanation, and track your score. No timer, no signup — take it as many times as you like with randomized question order.
Questions cover DNA fingerprinting and CODIS, Locard's exchange principle, forensic entomology and body farms, luminol chemiluminescence, GC-MS analysis, rigor mortis and time-of-death estimation, blood spatter dynamics, forensic odontology, touch DNA, ballistic rifling patterns, hair toxicology, forensic anthropology, and digital evidence recovery.
Sir Alec Jeffreys developed DNA fingerprinting at the University of Leicester in 1984. It was first used in a criminal case in 1986 during the investigation of two murders in Leicestershire, England. The technique first exonerated a wrongly accused man, Richard Buckland, and then led to the conviction of Colin Pitchfork through a mass DNA screening of local men — the first person ever convicted using DNA evidence.
Forensic entomology uses insect activity — particularly blowflies, which arrive at a body within minutes of death — to estimate the post-mortem interval (time since death). By studying the species present and their life-cycle stage (eggs, larvae, pupae, or adults), entomologists can determine how long a body has been exposed. Insect evidence can also reveal whether a body has been moved or whether drugs were present at the time of death.
Luminol is a chemical that produces a blue chemiluminescent glow when it reacts with the iron in hemoglobin found in blood. When sprayed in a darkened room, even trace amounts of blood that have been cleaned or are invisible to the naked eye will glow blue. Luminol is remarkably sensitive and can detect blood diluted to 1 part per 1,000,000, making it invaluable for revealing cleaned-up crime scenes.
Last updated: April 2026