First, a natural gas pipe was shoved through a hole drilled into the roof of the gang enforcement unit's headquarters. The building filled with flammable vapor but an officer smelled the danger before anyone was hurt.
Then, a ballistic contraption was attached to a sliding security fence around the building. An officer opening the black steel gate triggered the mechanism, which sent a bullet within eight inches of his face.
In another attempted booby trap attack, some kind of explosive device was attached to a police officer's unmarked car while he went into a convenience store.
(Now a bomb threat)