This phenomenon has come under national attention as a result of being perpetrated on several conservative bloggers. The police would certainly like to know who turns in these false reports, but they are often done in an untraceable manner.
Legislation is now under consideration that would ensure that the prank — called “swatting,” involving a fake call to 911 in which the perpetrator attempts to have police and SWAT teams sent to the victim’s home for a bogus violent crime — has harsh consequences.
State Reps. Kurt Heise, R-Plymouth, and Pat Somerville, R-New Boston, joined Oakland County Sheriff Michael Bouchard Wednesday at the sheriff’s department to discuss legislation that would make swatting a four-year felony and require those responsible to reimburse responding law enforcement representatives for the time and equipment used on the bogus call. [source]This is an appropriate response to these "pranks."
More about this here.