Describe the headspace technique for recovering accelerant residues. What instrument is most often used to detect and characterize recovered flammable residues?
What will be an ideal response?
In the headspace technique, an airtight container holding debris from the fire scene is heated, vaporizing any volatile residue present in the debris and trapping the vapor in the container’s enclosed airspace. The vapor, or headspace, is removed with a syringe. A gas chromatograph is usually used to detect and characterize residues in the vapor.
You might also like to view...
Tools such as ______ and MPE+ greatly simplify mobile forensic work
Fill in the blank(s) with correct word
A primary justification for interviewing involves:
a. the opportunity for practice. c. the identification of the perpetrator. b. a show of force. d. empathy for the victim.
________ is provided for victims who feel isolated, vulnerable, and in need of immediate services
Fill in the blank(s) with correct word
The basic open fields doctrine as stated by the Court in the Hester case is that Fourth Amendment protections _____
a. do not extend to the open fields b. encompass the open fields unless they are posted against trespass c. prevent officers from trespassing outside the curtilage d. prevent officers from trespassing into open fields