The officers led by CB-CID ADGP R Sekar met the Chief Minister at the Secretariat here. Jayalalithaa gave away certificates commending the efforts of the officers.
CB-CID wing of the state police had on Sunday arrested former Lt.Colonel Kandawamy Ramaraj for opening fire at Dilshan when the teenager trespassed into the Army premises where he was staying.
A few serving officers had also been questioned, triggering speculation that they could be involved in the killing.
However,with police zeroing on him on the basis of its probe, the 58-year-old Ramraj, a native of Madurai, confessed to having shot Dilshan with his rifle from a balcony.