Corporal Ranjith Rupasena of Jayanthipura, Polonnaruwa is said to have served at Giritale army camp and was part of the team that questioned Ekneligoda following his abduction.
Last Sunday, a CID team went to his home, and took away his wife by force as he had not been home at the time.
This is despite the woman being advised by doctors to take bed rest due to an illness.
Other military members, who were to be arrested along with Rupasena, surrendered to the CID through lawyers and are being questioned on a one-month detention order issued by the defence secretary.
When attempts were made to speak to the wife, her brother said she would refuse to comment as her condition was not good.
During the 1980s JVP insurgency and in the north, the military had abducted family members instead of arresting suspects.
Being done under the PTA, such abductions have now boomeranged on them.