Quilting threads can be made from natural fibers such as wool, silk, cotton, flax and jute. Some threads are regenerated from cellulose and others are made from synthetic fibers, such as metallic, polyester and nylon. Cotton, metallic and rayon are among the most popular threads used for machine quilting.
The Fire/Arson Investigation Unit is responsible for investigating and determining the cause and origin of suspicious fires involving death or injury, and fires of undetermined origin. Arresting suspects and filing criminal charges as required with District Attorney's office. Collecting and maintaining all evidence.
The investigator should: 1  Contact the incident commander, identify first responders and first-in firefighters, and arrange to document their observations either in writing or through recorded interviews. 2  Determine who reported the fire. Secure a tape or transcript of the report if available.