Software programs used to determine an “area of origin” (usually in bloodstain pattern analysis at crime scenes) are specialized forensic and mapping tools, not generic math or drawing apps.

What “area of origin” means

In forensics, area of origin is the 3D region in space where a bloodletting event likely started, reconstructed from the shapes and trajectories of individual bloodstains.

Analysts use measurements of stains (angles, positions, and directions) and then let software compute where those trajectories converge.

Core specialized BPA software

Several commercial and research-grade programs are built specifically for bloodstain pattern analysis (BPA) and area-of-origin work.

  • HemoSpat
    • Long‑standing BPA package used internationally for area-of-origin calculations.
* Works from measured stains (often from photographs), then projects trajectories back into 3D space to estimate the origin.
  • HemoVision
    • Forensic BPA software that supports 3D visualization of the calculated area of origin.
* Newer versions can integrate point‑cloud data, letting the origin solution be overlaid on laser‑scanned scenes.
  • FARO Zone 3D
    • Widely used forensic mapping and reconstruction tool that includes BPA and area‑of‑origin functions.
* Imports laser scans and total‑station data so the origin can be visualized in a full 3D scene diagram.
  • Map360 (Leica Geosystems)
    • Forensic mapping and analysis suite with built‑in BPA tools for area‑of‑origin calculations.
* Accepts 2D and 3D data sources (including laser scanner point clouds) and has validation studies comparing its origin estimates to known ground truth.

Supporting 3D capture tools

To feed these BPA programs, investigators increasingly rely on 3D scene capture rather than only tape measures and strings.

  • Recon‑3D (iPhone LiDAR app)
    • Uses an iPhone’s LiDAR and video to create 3D point clouds of a scene.
* Studies show its point clouds are accurate enough for use with BPA area‑of‑origin programs that accept laser‑scanner‑style data.
  • Terrestrial laser scanners (for example, FARO Focus)
    • Stand‑alone 3D laser scanners that generate detailed point clouds with millimetre‑scale accuracy.
* Their data are imported into tools like FARO Zone 3D or Map360, where BPA modules compute and visualize the likely origin region.

Other, older or niche tools

The field also has legacy and more specialized software beyond the main commercial suites.

  • BackTrack
    • One of the first dedicated area‑of‑origin analysis programs, built in the late 1990s for BPA.
* Relied on digital images and manual measurements to reconstruct trajectories back to an origin.
  • General mapping / GIS tools
    • Geographic Information Systems like ArcGIS or QGIS are sometimes mentioned in educational contexts for “area of origin” in broader geographic or environmental questions, but they are not standard BPA tools.
* In forensic bloodstain work, dedicated BPA software is preferred because it directly models droplet trajectories and impact angles.

Quick answer recap

If someone asks “what sort of software programs are used to determine area of origin” in a forensic bloodstain context, the most accurate short answer is:

Specialized bloodstain pattern analysis and forensic mapping programs such as HemoSpat , HemoVision , FARO Zone 3D , and Map360 , often combined with 3D capture tools like Recon‑3D and laser scanners to supply point‑cloud data.

Information gathered from public forums or data available on the internet and portrayed here.