Forensic Science
Time of death, blood spatter, bullet paths, STR match probability, fingerprints, toxicology, digital forensics, fire origin, documents, and forensic accounting.
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Blood Spatter Analysis Calculator
Calculate bloodstain impact angle, area of origin, and droplet velocity from stain dimensions. Uses the sine-ratio method for angle determination.
Bullet Trajectory Calculator
Calculate bullet trajectory angle, estimated muzzle distance, and bullet drop from entry/exit hole positions and distance between surfaces.
Digital Forensics File Timeline Calculator
Analyze file system activity patterns to detect anomalies. Calculates activity rate, deletion ratio, and an anomaly score indicating potential anti-forensic behavior.
DNA Match Probability Calculator
Calculate random match probability and likelihood ratio for DNA evidence based on loci matched, population size, and allele frequencies.
Document Age Estimation Calculator
Estimate document age from ink volatile analysis and paper acidity. Uses exponential decay modeling of ink solvent evaporation.
Fingerprint Ridge Count Calculator
Classify fingerprint patterns using ridge count and the Henry system. Determine pattern frequency and print quality assessment.
Fire Origin & HRR Calculator
Estimate heat release rate, flashover time, and ventilation control for fire investigation. Uses Thomas correlations and t-squared growth models.
Forensic Accounting Calculator
Detect financial discrepancies using the net worth method. Compare reported income against bank deposits, expenses, and asset accumulation.
Time of Death Calculator
Estimate post-mortem interval (PMI) using body temperature, ambient temperature, body weight, and clothing. Based on Newton's Law of Cooling.
Toxicology Dose Back-Calculator
Back-calculate an ingested dose from blood concentration using volume of distribution and elimination kinetics. Estimate peak concentration and elimination time.