Try the IUCN Crocodile Specialist Group. It is a large group (maybe the largest IUCN specialist group with hundreds and hundreds of members) but the the lead should be able to tell you right away which members will know about bushmeat from South/SE Asia: http://www.iucncsg.org/pages/Contact-Us.html
Probably the leading scientist on Philippines crocodiles is Jan van der Ploeg. Contact him with your question. His email is [email protected]. Thomas Headland on May 16, 2016