Memorandum Circular No. 2010-17 adopting the Wildlife Law Enforcement Manual of Operations as Guide in the Enforcement of Republic Act No. 9147 and other relevant Wildlife Laws, Rules and Regulations by Designated/deputized Wildlife Enforcement Officers, Environment and Natural Resources Officers and Members of the Wildlife Traffic Monitoring Units.

This Memorandum Circular adopts the Wildlife Law Enforcement Manual of Operations. The Manual shall serve as guide for the Wildlife Enforcement Officers (WEO), DENR Wildlife Traffic Monitoring Units (WTMU), Deputy/Special Deputy Environment and Natural Resources Officers (DENRO/SDENRO) and other stakeholders in the enforcement of the provisions of R.A. No. 9147 and other relevant wildlife laws, rules and regulations. The Manual is divided into three Books: 1) Book I - State Policy, Laws Relevant to Wildlife and Mandates of Government Agencies. This book lists down and provides details on the laws and policies being implemented by the DENR pertinent to wildlife protection, which include among others, R.A. No. 9147, R.A. No. 7586 (the National Integrated Protected Areas System Act), R.A. No. 9072 (National Caves and Cave Resources Management and Protection Act), and their Implementing Rules and Regulations. This Book specifically provides the groundwork for the existing laws and state policies from which they were based. It also presents the various agencies involved in wildlife law enforcement and their respective roles based on their mandates.
2) Book II - Protocols on Wildlife Law Enforcement. This major part of the Manual provides for the protocols on Investigation and Surveillance; Arrest and Search; Detention of Suspects; Apprehension, Seizure and Handling of Evidence; and Filing and Prosecution of Cases. It takes into consideration the existing procedures of various agencies such as the investigation process of the National Bureau of Investigation, the rules of engagement of the Philippine National Police and the Rules of Procedure for Environmental Cases of the Supreme Court, among others. It also presents a set of protocols to address implementation gaps in wildlife law enforcement scenarios in airports and seaports as well as the protocols to be observed relating to the Custody of Seized and Confiscated Wildlife Specimens, By-Products and Derivatives.
3) Book III - Wildlife Law Enforcement Forms. This Book provides the standard monitoring, reporting and documentary forms to facilitate the prosecution of wildlife-related cases. These include format of apprehension and investigation reports, specimen tum-over receipt, affidavit, and summary of information sheet, among other documents, to support prosecution of cases. The Protected Areas and Wildlife Bureau (PAWB) and the DENR-Regional Offices shall disseminate the Manual of Operations and undertake capacity building to ensure efficient and effective application of the Manual by all concerned.