MO HB1167

Establishes "Caylee's Law" requiring parents, guardians, or legal custodians to report missing children to local law enforcement within 24 hours of discovering the child's whereabouts are unknown, with law enforcement forwarding reports to the patrol.

Makes it a crime for parents, guardians, or legal custodians to fail to report a missing child, classified as endangering the welfare of a child in the second degree (class A misdemeanor, or class B felony if the child dies or suffers serious physical injury while missing).

Requires parents, guardians, or legal custodians who discover their child's dead body or learn of a child's death (under 17 years old) to notify the appropriate county law enforcement agency within one hour and provide known facts about the death.

Makes failure to report a child's death within one hour a crime of abandonment of a corpse, classified as a class D felony.

Prohibits law enforcement agencies from delaying active investigations based on automatic time limitations for missing persons cases.