Doubts raised ARMM can purge voters’ list (Yahoo - Philippines)
In another case of how good management and good technology need to be in the same place at the same time in order to make a real difference, an apparent legal oversight means that the process of disqualifying fraudulent voter registrations in the Autonomous Region for Muslim Mindanao is to be so time consuming that it may be impossible to complete before the scheduled elections.
As far as I can tell, the laws governing the biometric voter registration in the ARMM don't make any provision for rejecting multiple registrations. There also isn't any mention of it being against the law to register multiple times. Given its electoral history it's difficult to assume that local authorities can have been surprised by any of this.
The situation in the Autonomous Region for Muslim Mindanao stands in stark contrast to Sierra Leone. See Woman Sentenced for Double Voter Registration.