Forensic Science Tools

Forensic utilities for structured case triage, transparent calculations, and evidence-aware reporting.

Dental, Skeletal, and Third Molar Age Estimator

Estimate a forensic age interval from dental development, skeletal maturity, and third molar indicators for screening and case triage.

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Widmark Blood Alcohol Concentration Simulator

Calculate and simulate the absorption, distribution, and elimination of ethanol in the human body using the Widmark formula and a zero-order metabolism kinetics engine.

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Forensic Anthropology Sex Determinator

Estimate biological sex from cranial and pelvic morphology indicators using a Bayesian probability model.

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Forensic Stature Estimator

Estimate living height from human long bones using Trotter and Gleser regression equations, incorporating biological sex, ancestry, and age correction.

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Forensic Presumptive Blood Test Simulator

Simulate presumptive blood testing using Kastle-Meyer and Luminol reagents. Distinguish real blood from common false positives like rust, bleach, and plant peroxidasas.

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Forensic Image Metadata and Authenticity Analyzer

Inspect image headers, EXIF capture details, GPS coordinates, editing-software signatures, and raw bytes locally in your browser.

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GSR Dispersion Distance Calculator

Simulate educational gunshot residue dispersion patterns across a target surface using firing distance, ammunition type, density decay, soot deposition, and radial particle spread.

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Forensic TLC Ink Chromatography Simulator

Simulate thin-layer chromatography of questioned writing inks, visualize solvent-front development, separate dye bands, and calculate exact Rf values for each pigment.

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Forensic Microcrystal Drug Test Simulator

Simulate educational microcrystalline drug screening patterns by combining suspected controlled substances with classic forensic reagents and comparing crystal habit, growth speed, and polarized-light response.

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Forensic Glass Refractive Index Becke Line Simulator

Simulate the Becke line method for forensic glass comparison by heating an immersion liquid, matching refractive indices, and watching the bright halo disappear.

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Forensic Fiber Comparison Microscope Simulator

Build a questioned textile fiber profile, compare it against known references, and interpret morphology, polarization, and UV-Vis dye evidence.

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3D Bloodstain Pattern Origin Analyzer

Model elliptical bloodstains on a vertical plane, estimate impact angles, and visualize projected trajectories in an interactive 3D scene.

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Forensic Fingerprint Pattern and Minutiae Identifier

Upload a fingerprint image, inspect it with a true magnifier, classify the ridge pattern, mark a controlled set of minutiae, and export an evidence table.

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Fire Pattern Origin Analyzer

Map V-patterns, deep char, soot shadows, and clean burn indicators on a room plan, then project fire spread vectors to estimate the most likely area of origin.

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Forensic Toolmark Striation Matcher

Upload questioned and known toolmark images, align them in a split comparison microscope, and inspect striation continuity with visual controls.

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Time of Death Algor Mortis Calculator

Estimate postmortem interval and time of death using the Henssge nomogram method and body cooling thermodynamics.

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Voice Spectrogram Analyzer Online

Reveal the frequency, time, intensity, and estimated formant patterns of two audio samples privately in your browser.

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DNA Profile Match Probability Lab

Explore how allele frequencies and Hardy Weinberg genotype rules combine into an educational random match probability for a small STR profile.

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# Forensic Science Tools for Evidence Analysis and Case Triage

This library provides specialized tools and calculations for forensic analysts, legal professionals, researchers, and investigators. Forensic science utilities help evaluate physical evidence collected from crime scenes. By using structured models for bloodstain trajectory, age estimation, glass refractive index, and drug analysis, teams can perform initial case triage. Every utility focuses on transparency, showing assumptions and helping users understand the limits of each forensic formula in a clear manner.Early case review requires assessing what evidence is available, what the scientific formulas assume, and where uncertainty remains. These calculators are designed to support education and preliminary screening. They assist in determining which analytical steps are necessary before committing to formal laboratory testing. Using these tools helps identify gaps in the evidence files early in the investigation process.

# Key Areas of Forensic Calculations

  • Age estimation: skeletal, dental, and maturity calculations with explicit uncertainty metrics.
  • Evidence interpretation: structured estimators that display formulas, confidence intervals, and boundaries.
  • Case triage: fast tools that highlight missing evidence and identify parameters needed for formal examination.
  • Report drafting support: utilities that encourage clear reporting using ranges rather than false precision.

# Guidelines for Responsible Use of Forensic Software

Every forensic calculation involves error rates and confidence limits. A calculator should never replace a qualified expert witness or a validated laboratory protocol. Instead, these web utilities are best used to explore scenarios, explain concepts to non-specialists, and check the sensitivity of measurements before writing final reports. This helps prevent misunderstandings in the courtroom regarding scientific precision.
Appropriate Use Inappropriate Use Importance
Screening case files before formal specialist examination.Using a calculator output as a final expert opinion.Forensic evidence must meet strict standards of scientific validation.
Explaining measurement uncertainty and ranges to investigators.Reporting a single exact number without explaining limitations.False precision can lead to incorrect decisions in judicial systems.
Checking how input assumptions affect the estimated outcome.Hiding initial parameters or calculations from the case record.Transparency allows results to be audited and reproduced by others.
Determining if data quality is sufficient for calculation.Running formulas with poor or incomplete scale measurements.Weak input parameters make any mathematical reconstruction unreliable.