(Pixabay / FILE PHOTO) In a statement, DPPF said that “Regional Superintendent Julie May C. Taguiam gives PDLs the privilege to communicate or correspond with persons or organizations through the ‘Tawag Kalinga Program’ of Inmate Visitation Services Unit.” Last March, DPPF started installing signal jammers in the reservation to prevent PDLs from using mobile telephones and other gadgets. It said that signal jammers were put up to ensure that PDLs “are completely incapacitated from further committing criminal acts, and have been totally cut off from their criminal networks or contacts in the free society while serving sentence at BuCor (Bureau of Corrections), and to ultimately protect the society against crime.”