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Nearly a decade ago, Fire Findings published an article about the likelihood of cigarettes igniting paper trash. This issue, we revisit the topic, but this time we test cigarettes in clothing. Find out the results of 500 tests.

Special Report: Arc mapping follow up
Investigators William B. Johnson, P.E., and Lester V. Rich revisit arc mapping and show how investigators can use it to obtain physical evidence of a fire’s origin. Learn how they designed their own experiment to test its usefulness and get some tips for applying it to your investigations.

How It Works: Air Conditioning
Air conditioners get a hard workout in the dog days of summer. They play an important role in keeping us cool, but do you really know how they work? Check out this issue to learn more about their inner workings.

And, in every issue:
Fast Facts • Something for Nothing • Reviews • In-Court Tips • Product Recalls and Manufacturer Problems • Techniques • Site Surfing