▁National ▁Th ow he eth ▁J ama ' ath ▁was ▁identified ▁as ▁responsible ▁for ▁these ▁string ▁of ▁attacks . ▁ ▁C ounter - ter ror ism ▁▁ ▁The ▁Special ▁Task ▁Force ▁( ST F ) ▁is ▁an ▁el ite ▁special ▁forces ▁unit ▁of ▁the ▁Sri ▁L anka ▁Police ▁Service ▁special izing ▁in ▁counter - ter ror ism ▁and ▁counter - ins ur gency ▁operations . ▁It ▁was ▁formed ▁in ▁ 1 9 8 3 ▁not ▁as ▁a ▁military ▁force ▁but ▁rather ▁as ▁a ▁highly ▁special ised ▁police ▁unit . ▁Today ▁it ▁has ▁developed ▁into ▁a ▁major ▁security ▁arm ▁of ▁the ▁state ▁involved ▁in ▁VI P ▁security , ▁protect ing ▁sensitive ▁terror ist ▁targets ▁and ▁suppress ing ▁activities ▁which ▁pose ▁a ▁threat ▁to ▁national ▁security . ▁On ▁June ▁ 7 ▁Three ▁suspect s ▁have ▁been ▁arrested ▁with ▁a ▁ha ul ▁of ▁state - of - the - art ▁tele communic ation ▁equipment ▁including ▁high - tech ▁mobile ▁ph ones ▁during ▁a ▁ra id ▁of ▁a ▁house ▁at ▁Eth th uk ala ▁in ▁Neg om bo ▁in ▁Western ▁province on ▁June ▁ 7 , ▁reports ▁Col om bo ▁Page . ▁Police ▁Sp okes man ▁Super int endent ▁Police ( SP ) ▁R uw an ▁Gun ase k ara ▁said ▁that ▁ 4 0 2 ▁i Ph ones , ▁ 1 7 , 4 0 0 ▁S IM ▁cards , ▁ 6 0 ▁rou ters ▁and ▁three ▁la pt ops ▁were ▁among ▁the ▁items ▁that ▁were ▁seized . ▁One ▁of ▁the ▁three ▁suspect s ▁arrested ▁is