[3] He also supervised police coverage of the North and East for three years, and was the Special Task Force (STF) Senior DIG in operations against the LTTE.
[3][4] In 2010 Balasuriya received a PhD from the Saint Petersburg State University in Russia, for his doctorate on terrorism in Sri Lanka and subject of national security.
[10][11] He then served as the ambassador in the United Arab Emirates, before being appointed the Secretary to the Ministry of Law and Order in October 2014.
[12][13][14] In July 2016 he was questioned by the Criminal Investigations Department (CID) in connection with the January 2009 murder of journalist Lasantha Wickrematunge and allegations that former Defence Secretary Gotabhaya Rajapaksa ordered the assassination.
[15][16][17] In November 2016 he appeared before the Presidential Commission of Inquiry to Investigate and Inquire into Serious Acts of Fraud, Corruption and Abuse of Power, State Resources and Privileges (PRECIFAC), in respect of providing security for National Freedom Front members of parliament during his tenure.