The idea was recommended in a recent civil grand jury report on youth gangs.
Sheriff Don Horsley is studying how much it would cost to create and maintain a centralized list of gang-related programs and information and whether city and county law enforcement agencies would be willing to participate in such an effort.
Horsley is also looking into the cost of setting up a confidential hotline for reporting suspected gang activity, according to a report by San Mateo County Manager John Maltbie to the San Mateo County Board of Supervisors.
The grand jury's prescient report came out in June, just as gang violence went on an upswing.
East Palo Alto alone has had 13 murders this year, nearly twice as many as all of 2004. Police say 11 of those are gang-related.
Redwood City did not have a gang-related murder in about 10 years until this summer, when gang violence left two dead and at least one injured.
Police say the incidents reflect a marked increase in gang-related violence across California.
In response, the city governments of East Palo Alto and Redwood City have allocated more money for law enforcement.
Maltbie generally agreed with the grand jury's main finding, that the county lacks a