Oklahoma House members’ unanimous vote Tuesday to put a constitutional amendment expanding crime-victims’ rights on the 2018 ballot suggests the need for it is obvious and indisputable.

“Marsy’s Law,” as it is called, would amend the constitution to both reinforce and extend the rights of all crime victims to certain treatment, information and restitution by the criminal justice system. Proponents say such laws are necessary to equalize the rights of victims with those of suspects and perpetrators.

But the issue may not be as simple as it seems.

In some states where a version of Marsy’s Law ha...