(COLOMBO, LANKAPUVATH) –Criminal Investigations Department (CID) over the assault on former Editor Upali Tennakoon.
Rajapaksa was arrested in Hanwella over the 2009 incident.
Fingerprints found on Tennakoon’s vehicle on the day of the assault have been linked to the army officer.
Attorney General Dappula De Livera had instructed the CID to arrest Rajapaksa and produce him before court.
Tennakoon was assaulted on 23 January 2009 by unknown assailants. Both Tennakoon and his wife were injured during the attack.
Rajapaksa is said to be an officer who was attached to the controversial Tripoli Army Camp in Maradana.
Army intelligence officers attached to the Tripoli Army Camp had also been linked to the assassination of The Sunday Leader Editor Lasantha Wickrematunge (2009), the abduction and torture of journalist Keith Noyahr (2008), and the attack on journalist Namal Perera.