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This sounds really interesting! Can you provide a link to more info?

"A 2022 study found that infants who died of SIDS exhibited significantly lower specific activity of butyrylcholinesterase, an enzyme involved in the brain's arousal pathway, shortly after birth. This can serve as a biomarker to identify infants with a potential autonomic cholinergic dysfunction and elevated risk for SIDS."

https://en.wikipedia.org/wiki/SIDS

Maybe this can stop the false prosecutions too. Or would they not be able to measure the enzymes in an autopsy?

May help, but it's still only one (potential) cause of SIDS.

SIDS encompasses a wide variety of risk factors. For example, heart pathologies are another common cause of SIDS. Additionally, stomach sleeping and inadvertent suffocation are other common risk factors.

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