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Crip Dyke's avatar

Robyn I really appreciate your ongoing coverage of death penalty cases and junk science's role in false convictions. Just thought you should know.

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Tetman Callis's avatar

In my line of work (insurance subrogation), I see a lot of fire investigations. How they are conducted has certainly changed, and for the good. It used to be that if the cause of a fire wasn't clear -- and that is often initially the case, absent clear and careful follow-up investigation -- the investigators would find that it just had to be arson. They would apply what came to be known as the "negative corpus doctrine," which says that if you can't prove what started a fire, then you can conclude it must have been arson.

Fire origins and cause analysis (O&C, though sometimes it's called C&O, and I wish they'd get that sorted out) is much more developed and rigorous than it was even a generation ago. There is even fire investigation training available.

Fires are rarely caused by arson. For what it's worth, these days they are often caused by lithium-ion batteries and battery charging apparatus. So be careful what you buy and where you get it from. Keep your receipts, follow the product's instructions rigorously, and if you own a home, make sure you have sufficient insurance coverage and your premiums are paid.

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