Table of Contents
What is explosion forensics?
Introduction. Forensic analysis of explosions consists of determining the point of origin, the explosive substance involved, and the charge mass. In the case of deliberate explosions, this information is desirable to trace production facilities of illicit materials and eventually the perpetrator.
What is explosive investigation?
The Explosion Investigation Section is responsible for investigation of all kinds of explosion cases such as bombing incidents and explosion accidents. Explosion cases can become serious social problems due to their cruel damages on human bodies and properties.
What forensic unit examines explosives?
The trace-evidence unit analyzes evidence such as fibres, fire and explosive residues, glass, soils, paints and coatings, and other materials.
What happens to a body during an explosion?
The main direct, primary effect to humans from an explosion is the sudden increase in pressure that occurs as a blast wave passes. It can cause injury to pressure- sensitive human organs, such as ears and lungs.
What are two types of high explosives?
High explosives will be referred to Type E explosives, and there will be three sub-types in this group:
- 1 – blasting and bulk explosives (explosives used for commercial blasting applications or for their manufacture);
- 2 – perforating explosives (intended for use in the oil and gas well industry);
What are the 4 types of blast injuries?
The four basic mechanisms of blast injury are termed as primary, secondary, tertiary, and quaternary (Table 1).
How does forensic science work in an explosion?
The forensic expert needs to analyze and gather information on the basis of physical evidences collected at scene of crime. Many studies were conducted regarding explosive performing by performing field experiments to understand the properties of explosive, pattern of post-blast sample distribution, or potential source of evidence.
How is an arson and explosion investigation done?
Arson and explosion investigation is the process of analyzing the charring and chemical residue (if any is left) on the debris found at the crime scene to perform the following tasks: Determine whether the event was accidental or intentional. Identify relevant chemicals found at crime scene.
What to look for in an explosion investigation?
Initially the investigation will establish whether an explosion has actually occurred. Explosions will result in specific damage being caused to surrounding areas, the presence of which may indicate such an incident has taken place. Therefore investigators will search for this characteristic damage.
How to find the origin of an explosion?
Locate the origin of the fire or explosion. In the case of fire, look for devices and containers used to ignite and/or spread the fire. In the case of explosion, look for detonating mechanism and use dogs or a vapor detector to find residue.