> If it were up to me to decide, I would treat them as an adult for the purposes of the trial, but take into account their young age as an extenuating circumstance when sentencing.

And how would you treat other cases that are 17.9, 17.75, 17.5, 17, 16.99, 16, 15, 14, 12?

Obviously we could have a sliding scale, but that's a different hypothetical. What's your binary verdict?