In response to the Rizal Day bombings , a series of attacks on December 30 , 2000 that included the bombing of a Line 1 train among other targets , and in the wake of greater awareness of terrorism following the September 11 attacks , security has been stepped up on board the system . The Philippine National Police has a special police force assigned at both lines . and security police provided by private companies are assigned to all stations with each having a designated head guard . Closed-circuit televisions have been installed to monitor stations and keep track of suspicious activities . To better prepare for and improve response to any adverse incidents , drills simulating terror attacks and earthquakes have been conducted . It is standard practice for bags to be inspected upon entry into stations by guards equipped with hand-held metal detectors . Those who refuse to submit to such inspection may be denied entry . Since May 1 , 2007 , the LRTA has enforced a policy against making false bomb threats , a policy already enforced at airports nationwide . Those who make such threats can face penalties in violation of Presidential Decree No . 1727 , as well as face legal action . Posted notices on station walls and inside trains remind passengers to be careful and be wary of criminals who may take advantage of the crowding aboard the trains . To address concerns of inappropriate contact on crowded trains , the first coach of Yellow Line trains have been designated for females only
Rizal Day bombings
Rizal Day bombings
Manila Light Rail Transit System