Activity that is protected by one statute may not be criminalized by another. Cox v. Louisiana, 379 U.S. 559, 571 (1965). Because Madeline’s condition never progressed beyond a “substantial risk of death” until she actually died, there was no boundary or a clear moment when the Neumanns would be placed on notice that their conduct had crossed the line between immunity under Wis. Stat. § 948.03(6) and liability under Wis. Stat. § 940.06.