Fire Debris Collection for Instrumental Analysis

AGI Debris Collection Image 1

Persistence of ignitable liquid residues at fire scenes can challenge the most experienced fire investigator. The recovery of Ignitable liquid residue requires knowledge, experience, skill and a certain amount of luck. John has recently presented a paper titled “Fire Debris Collection for Instrumental Analysis” at “The Evidence Conference”, delivered in Washington DC and this article aims to provide a summary of his paper.

Dehumidification Process

AGI Device Dehumidification Image 1

The basic functional principle of drying dehumidifier is really quite simple. A fan draws in humid air and carries it through a refrigerated evaporator. The air is cooled well below its dew point. The water condenses on the cold surface of the evaporator and drips into a water container or is led directly to a drain. Then the cold dry air continues through a hot condenser which heats it up and returns it to the room to pick up new humidity. This procedure is continued until the desired condition is achieved.