The DENR inspection activity became necessary after a earlier group composed of local DENR personnel, Lianga local officials and non-governmental representatives had recommended that the cooperative be formally investigated for possible violations of the conditions of its forest management agreement. A shipment of its cut timber at the Diatagon wharf had also been found to have been possibly mis-declared in terms of actual volume and had been earmarked for seizure pending the result of a more thorough probe.
Mazo had been only on the job as chief of the Lianga municipal police station for a couple of days and would probably have been excused for not going but perhaps he was a conscientious man and only wanted to make a good impression on the people of the town. He eventually decided to help escort the DENR team. That decision he paid for with his life.