In the Niven short story "Madness Has Its Place", there's this passage:
The ARM suppresses dangerous technology. What the ARM buries is supposed to stay buried. I remembered a kind of time compressor, and a field that would catalyze combustion, both centuries old. Both were first used for murder.
I've read the murder mystery about the time compressor; it's a Gil Hamilton story called "ARM" (spoilers). But I don't remember any story about the other invention, the one that catalyzes combustion.
Is there such a story?