On August 12, 1998, the NAPOLCOM issued Resolution No. 98-179 designating the Acting Chief, Philippine National Police (then Police Director General SANTIAGO L. ALINO) as the lead Commissioner who shall represent the Commission in overseeing and coordinating the immediate organization and operationalization of the IAS during the transition period of ninety (90) days. 

On October 9, 1998, the Deputy Director of the PNP Directorate for Plans initiated the move to speedily activate the IAS to give essence to the provision of the law and the afore-cited NAPOLCOM Resolution. A series of conferences were held, attended by representatives of the PNP Directorial Staff, PNP Legal Service, the now-defunct PNP Inspectorate and Internal Affairs Office (IIAO) and IAS. 

On December 18, 1998, the NAPOLCOM issued Memorandum Circular No. 98-017 prescribing “guidelines to facilitate the organization and operations of the IAS”

After 2 months of issuance of the MC No. 98-017, on February 16, 1999, the members of the committee chaired by Police Chief Superintendent AVELINO I. RAZON, Deputy Director for Directorate for Plans came up with the recommendation which eventually led to issuance of PNP Letter of Instruction 11/99 (Gabay)

The above Letter of Instruction prescribed the smooth reassignment of PNP personnel, the transfer of facilities, equipment, firearms, ammunition, vehicles, supplies, records, and other resources of the defunct IIAO to the newly created PNP IAS as well as provision for their fund support. Various contentious issues were raised during the information dissemination campaign made during this period. Arguments revolved around issues ranging from the authority of IAS in relation to other disciplinary authorities, to other matters such as benefits, career development, incentives, etc. The discussions about these issues dragged on for months, effectively delaying the formal startup of IAS operations. 

On May 7, 1999 or one year and two months after the creation of IAS, President Joseph Estrada issued Executive Order No. 101 (EO No. 101) entitled “Providing for the Immediate Organization and Operationalization of the Interim IAS of the PNP”. The said EO provides the immediate organization and operationalization of an Interim IAS pending the approval of its manning and staffing pattern. It empowered IAS to inquire into the state of discipline, efficiency, economy, training, morale, and readiness of the PNP

On June 1, 1999, National Headquarters (NHQ) PNP issued General Order No. DPL 99-004 for the formal start of IAS operations effective on the same date. The order also de-activated the IIAO in various PNP offices nationwide. In turn, the first Inspector General issued Staff Memo Nos. 99-001, 99-002, 99-003 to constitute the IAS interim offices at the national, regional, provincial, district and city levels.

 The initial seat office of the IAS was located inside Camp Crame, occupying the cramped office spaces of the former IIAO at the NHQ, PNP. The old office of IIAO had poor ventilation, lacked utilities and needed repair. The Inspector General and his staff occupied a portion of the 2nd Floor of Kiangan Hall. Pending the availability of a more spacious office building inside Camp Crame, the IAS was authorized to look for other office sites. 

On June 2, 1999 the Department of Justice (DOJ) rendered its opinion relating to the interpretation and implementation of the provisions of Title V, Section 39 of RA No. 8551 specifically on the status of the IAS and its authority as a disciplinary body of the PNP. “Section 39. Creation, Powers, and Functions. – An Internal Affairs Service (IAS) of the PNP is hereby created” 

On October 3-6, 1999 the IAS created and crafted its first Vision-Mission-Goals. 

On November 8, 1999 IAS relocated its national office to a building in Makati City pursuant to NAPOLCOM Resolution 99-128 dated October 1, 1999. The new office was found more suitable and consistent with the general requisites, such as client accessibility, security and safety. 

On November 14, 2000 NAPOLCOM issued Resolution No. 2000-160 entitled “Establishing the Organizational Structure and Staffing Pattern of the Internal Affairs Service of the Philippine National Police and other purposes.” The said resolution recommended to the DBM approval of the PNP IAS Organizational Structure and Staffing Pattern, having found that the structure is in conformity with sound principles of organization and management, as well as being in consonance with the provisions of RA 8551. 

On January 2, 2002 DBM approved the Letter Request of Secretary of the Interior and Local Government (SILG) regarding the approval of the proposed Organizational Structure and Staffing Pattern (OSSP) of the PNP IAS. DBM approved the transfer of 1,000 Uniformed Personnel (UP) and 297 Non-Uniformed Personnel (NUP) positions. However, out of 297 approved NUP positions, the DBM funded only 76 of the latter. 

On December 11, 2002 NAPOLCOM issued Memorandum Circular No. 2002-013 entitled “Prescribing the Rules of Procedures in the Investigation and Disposition of Administrative Complaints against Uniformed Personnel of the PNP before the IAS, including the Administrative Offenses and Penalties appropriate thereto”. 

In July 2004, the National Office of IAS was transferred again inside Camp Crame because of the very limited fund support from the national government, which left IAS unable to cope up with the high monthly rentals and bills incurred at the Makati office building. Although there was still no available facility which could suitably house the IAS offices, the Service moved back to Camp Crame to avoid further accumulation of unpaid obligations. 

However, the IAS national offices were split up and located into 3 buildings: the Office of the Inspector General (IG) and the Administrative and Financial Management Division (AFMD) were moved to the 2nd floor of the NHQ PNP while the Office of the Deputy Inspector General (DIG), Planning and Research Division (PRD), Inspection and Audit Division (IAD), Legal Affairs Division (LAD), and Prosecution Division (PD) were housed at the former office of the PCRG. The Intelligence and Investigation Division (IID) was transferred to the ground floor of the PNP Legal Service. 

On March 6, 2007 NAPOLCOM issued Memorandum Circular No. 2007-001 prescribing the “Uniform Rules of Procedure before the Administrative Disciplinary Authorities and the Internal Affairs Service of the Philippine National Police”. 

On October 16, 2008 the first Inspector General Atty. ALEXIS CORTEZ CANONIZADO retired from government service and was replaced by a uniformed police officer, Police Chief Superintendent JAIME LAGRO TAGACA, who was designated Officer-in-Charge and thus became the first uniformed IAS chief of office. 

On November 10, 2009 IAS submitted its first Position Paper on Strengthening the IAS as compliance with the Chief, PNP’s directive. The said position paper was reviewed by the Technical Working Group re Strengthening of IAS headed by PDIR JEFFERSON P. SORIANO. 

On November 26, 2009 the DILG issued a memorandum of prohibition for PNP personnel who joined the IAS, preventing them from returning to the PNP mainstream. 

On January 9, 2010 Police Director Atty. IFOR IBABAO MAGBANUA (having succeeded the retired Police Chief Superintendent TAGACA) was designated the Service’s first Acting Inspector General. 

On June 3, 2010 the Acting Inspector General, IAS signed and approved the IAS Guidelines and Procedures relative to Sections 39 to 51 of the Implementing Rules and Regulations (IRR) of RA 8551. The guidelines were published at the UP Law Center on the same date. 

In July 2010 the first AGI ORSITE book was published and distributed among various stakeholder government agencies. The book was a compilation of the results and findings as well the recommendations, analyses and conclusions of the inspections and audits conducted on the different PNP units. 

On July 20, 2012 Police Director ALEXANDER LASAN ROLDAN (who succeeded the retired Police Director Atty. MAGBANUA) became the Service’s second Acting Inspector General as designated by Chief, PNP NICANOR BARTOLOME. 

On November 22, 2012 the NHQ PNP issued General Orders DPL 10-01A for the activation of PNP IDU as approved per NAPOLCOM Resolution No. 2012-319 dated August 13, 2012. The IDU would serve as the management facility to ensure that the highest ethical and professional standards are maintained in the police organization.  Two years earlier (on March 10, 2010), the Chief, PNP had approved the transfer of the IDU from PNP DO to PNP IAS. 

On August 5, 2016 Police Director LEO ANGELO DIEL LEUTERIO was designated as the Service’s Acting Deputy Inspector General (who replaced Police Director ROLDAN just before his retirement on December 2016). On his three months leadership of the Internal Affairs Service PDIR LEUTERIO introduces programs and projects for the improvement of IAS Office and personnel. A few of these are the development of the Digitization of IAS Documents, IAS IT Infrastructure and Information Systems. The Project IN.SP.ECT.ORS and Project C.O.P.S. which serves as a standard for the Inspection and Audit function of IAS. His continuous visit with the IAS Staff to other PNP Units enlightened and illuminated other units in its objective to develop personnel and units under the project “Mothering the PNP toward better discipline and increased performance”. 

On November 8, 2016 Atty. ALFEGAR MENCHAVEZ TRIAMBULO was appointed as the second civilian Inspector General of the PNP-Internal Affairs Service. His expertise and experienced at the NAPOLCOM qualify him in the trust of President Rodrigo Duterte to forefront the PNP Internal Affairs Service. Together with the men and women of the PNP Internal Affairs Service, certainly, IAS can attain its mandated tasked combined with the good leadership of our new Inspector General Atty. Alfegar Menchavez Triambulo.