Bloodstains are classified into three basic types: passive stains, transfer stains and projected or impact stains. Passive stains include drops, flows and pools, and typically result from gravity acting on an injured body.

Parent stains under 3mm are most likely some form of dynamic spatter (e.g., impact or expectorate), and if the analyst encounters stains in excess of 25mm, they are less likely to be stains produced by drips, but rather created by a large mass of …

Spattered blood is defined as a random distribution of bloodstain that varies in size that may be produced by a variety of mechanisms. Forward Spatter: Spatter projected outward and away from the source, such as an exit wound, is called forward spatter.

A bloodstain resulting from a blood drop dispersed through the air due to an external force applied to a source of liquid blood. Definition, description, and examples of Spatter Stain. Based on the SWGSTAIN and IABPA bloodstain terminology. Includes cross-reference with other terminology.

From what may appear to be a random distribution of bloodstains at a crime scene, analysts can categorize the stains by gathering information from spatter patterns, transfers, voids and other marks that assist investigators in recreating the sequence of events that occurred after bloodshed.

Feb 21, 2023 · The size, shape, location, and distribution patterns of blood stains found at a crime scene can help to determine the sequence of events, the approximate locations of blood sources, the position of the victim, the type of weapon used, intensity and number of impacts applied to the blood source, etc.

SPATTER VS TRANSFER: The simplest type of blood spatter analysis is determining spatters from transfers. Spatters are created when blood is acted upon by force, and travels through the air before landing on a target surface. Transfers occur when a blood source comes in direct contact with a target surface area.

Spatter Stain A bloodstain resulting from an airborne blood drop created when external force is applied to liquid blood.

Jul 1, 2024 · Spatter Stain – A bloodstain resulting from an airborne blood drop created when external force is applied to liquid blood. Splash Pattern – A bloodstain pattern created from a large volume of liquid blood falling onto a surface.

Feb 14, 2025 · Blood spatter analysis, also known as bloodstain pattern analysis, is a critical tool used by forensic investigators in crime scene reconstruction. It involves the scientific examination of blood patterns at a crime scene to determine aspects of a violent event.