Notably, he is the advisor of Retired Personnel of the Royal Brunei Police Force Association (POLSARA).

[5] He traveled from Brunei as part of the delegation to the 20th Asia Pacific Parliamentary Forum (APPF) in Japan from 8 to 12 January 2012, and the ASEAN Inter-Parliamentary Assembly (AIPA) in September 2011.

[3] Pehin Ya'akub proposed establishing halal product factories in Brunei during the 11th LegCo Meeting in March 2015, expecting government allocation of funds to ensure both national benefit and citizen welfare.

[6] He presented ideas and opinions on 18 March, regarding the creation of a national fund and the replacement of the current Brunei Museum with a new structure in Bandar Seri Begawan.

[7] On 23 March, he cited the migration of Kampong Ayer people to the mainland as a major element in the water village's decline.