FORENSIC ANALYSIS OF PCOS MACHINE: Atty. Gener Gito of the Senate Legal and Legislative Affairs Service (2nd from left) and Atty. Al Vitangcol (right), a forensic hacking consultant employed by the House of Representatives, inspect the first batch of Precinct Count Optical Scan (PCOS) machines for any signs of physical tampering at the Senate building in Pasay City on Friday, June 4.