Establishes the "Missouri Prenatal Equal Protection Act"

HB 1682 defines "person" to include "an unborn child at every stage of development from the moment of fertilization until birth," treating abortion as criminal homicide under existing murder laws. It prohibits abortion except in limited medical emergencies where a licensed physician performs a procedure to save the pregnant person’s life when all alternatives failed. The bill removes defenses like "duress" for abortion-related offenses (except for the mother in specific cases) and allows prosecution in multiple counties based on where the offense occurred or the victim resided. This would directly affect individuals seeking or providing abortions, medical providers, and law enforcement in Missouri.