Could type I diabetes serve as a model, here?
Similar risks and similar medical vigilance/responsibility. I know (from the Beta-Spouse) that this is a major concern among T1D, too. It's one of those major bogeymen in your head as a parent.
I know that I've spend many years advising my firebrand, social-justice oriented child that she MUST NEVER risk arrest via civil disobedience because of this risk. Not unless she TRULY thinks that her cause and that arrest/detention is (literally) worth her life.
We've also had the discussion that if she were ever in juvenile custody for ANY reason-- she is to refuse all food. Period. Bottled water, okay-- but nothing else. For as long as it takes.
How much does it suck to have this kind of conversation with a 3-7yo child? A lot.
But not as much as it would suck to have a well-meaning first responder kill my kid if I were incapacitated. KWIM?