Law
The Obligation to Investigate Enforced Disappearances Under Treaty Law
Quick fact
Under the International Convention for the Protection of All Persons from Enforced Disappearance, states must investigate any alleged enforced disappearance, even without a formal complaint, and the obligation is not suspended during states of emergency or war.
Why this is interesting
If a person vanishes at the hands of state agents, who is legally required to find out what happened? You might think the family must file a complaint, but treaty law imposes a far stronger duty on the state itself.