In view of the requirement of huge number of skilled human resource and job specialization concept in investigation, Detective Training School (DTS) was established by developing Detective Training (DT) Wing within the available resources of National Police Academy in 21st April 1996 A.D. It conducts various trainings on Crime Investigation as mentioned earlier.

The Central Police Dog Training School, established in 1969 A.D., is now upgraded to Dog Training School in 1991 A.D. which conducts dog handler course, dog training on various topics such as drug, explosive, tracker,  etc. The service of dog sniffing in any program of VIPs and national celebration has been managing by the school since its establishment.

The Nepal Police School of Music, previously known as Central Police Band was established in 1952 A.D. has been restructured and renamed on 17 July, 2006 (1st Shrawan, 2063). It is headed by a Deputy Superintendent of Police as a Director of Music. It has also been organizing various basic and advance training programs from time to time to meet its requirements. It displays the band performance in different national as well as police functions. In addition, it serves the public as well as other institutions in celebratiing social and traditional performances. 

NPA avails itself with the facilities of:

Library, Crime Scene Lab, The Forensic Science Laboratory, Detective Training School Building, Computer Labs and Control Room, Accommodation for trainees, Mess, Ml. Room, Sports (Football, Volleyball, Basketball, Handball,  Squash, Badminton, Table-Tennis, etc.), Multi purpose Gymnasium Hall,  Firing Range, Photography Section, Conference Hall, Class Rooms.

NPA in Future:

NPA has developed 10 years plan for its growth which will enable this institution to be self reliant and complete. This plan has two major parts.  First includes full fledged infrastructural development of NPA with all facilities required, planned to be built in Panauti, 25km east of Kathmandu. Secondly,  after NPA's shifting to Panauti, the present NPA premises will be occupied by Detective Training School. This school will be upgraded to Detective Training College. 

Further, a new administrative building is under construction within NPA to accommodate new challenges in training. Likewise, the forensic science lab will be shifted in this building after the completion of construction work.  Finally, NPA strives to be transformed into a "Centre for Excellence after achieving the plan.