What is a ligature as it relates to asphyxia?

A ligature, in the context of asphyxia, refers to an object that is wrapped around the throat, which can impede airflow and result in suffocation. This method is often associated with strangulation, where the ligature can create pressure on the neck, cutting off blood flow to the brain and obstructing the airway. It can be made from various materials, such as rope, cord, or fabric, and is a critical piece of evidence in forensic investigations when determining the cause of death.

Recognizing the role of a ligature in asphyxia is essential for understanding the mechanics of strangulation. It provides insight into the circumstances surrounding a death, aiding investigators in reconstructing events that may have occurred. The identification and analysis of ligature marks on a victim can also provide vital information about the type of ligature used, the force applied, and other details pertinent to the investigation.