Palparan was suspected that he has knowledge on the immediate disappearance of two University of the Philippines students. Lieutenant Colonel Felipe Anotado, Master Sergeant Rizal Hilario and Staff Sergeant Edgardo Osorio are also included in the arrest order. They are all facing two counts of kidnapping and illegal detention for the enforced disappearance of University of the Philippines students Sherlyn Cadapan and Karen Empeno.
According the Justice Secretary Leila de Lima, Palparan was not arrested but was only barred from leaving the country to answer all accusation against him.
Warrant of Arrest