HE WAS. >> ALL RIGHT, A LOS THANKS FOR SURE. >> IN SAN FRANCISCO, THE POLICE DEPARTMENT IS ATTRIBUTING ITS LATEST SUCCESS IN COMBATING CRIME TO A NEW NETWORK OF LICENSE PLATE READER CAMERAS. ABC SEVEN NEWS REPORTER LUZ PENA SPOKE TO THE MAYOR ABOUT THE CITY'S EFFORTS TO INCREASE SAFETY. SHE'S HERE NOW WITH WHAT SHE LEARNED. LOUIS. >> THAT'S RIGHT. EMMA. THIS CAMERA NETWORK IS PART OF SAN FRANCISCO'S GOAL TO HAVE A TOTAL OF 400 LICENSE PLATE READER CAMERAS INSTALLED BY JULY. THE CITY SAYS THEY'RE NOTICING THE RESULTS. SO FAR, AND ATTRIBUTING SEVERAL ARRESTS IN THE LAST THREE MONTHS TO THESE CAMERAS. ABOUT 100 AUTOMATED LICENSE PLATE READER CAMERAS ARE LIVE IN SAN FRANCISCO, AN SFPD SAYS THEY HAVE BEEN CRITICAL TO COMBAT CRIME. >> OUR GOAL IS TO MAXIMIZE OUR USE OF TECHNOLOGY TO FIGHT CRIME MORE EFFECTIVELY AND WITH MORE PRECISION. >> THIS PUBLIC SAFETY STRATEGY WAS LED BY MAYOR LONDON BREED AND MADE POSSIBLE BY PROP E, ALLOWING FOR AN INCREASE OF USE OF TECHNOLOGY BY THE POLICE DEPARTMENT. >> IF YOU'RE COMMITTING A CRIME, YOU'RE GOING TO BE CAUGHT. >> THE FIRST BATCH WAS INSTALLED THREE MONTHS AGO. MAYOR BREED SAID THESE CAMERAS ARE HELPING SAN FRANCISCO COLLABORATE WITH OTHER CITIES. >> SO FAR, WE'VE ALREADY USED WHAT WE HAVE TO MAKE ARRESTS IN RETAIL THEFT CASES, AS WELL AS A RAPE THAT HAPPENED IN ANOTHER CITY. SO WHEN PEOPLE IN THE BAY AREA AND DIFFERENT JURISDICTIONS, THEY PUT OUT INFORMATION WE COULD TYPE IT INTO OUR LICENSE PLATE READER AND MAKE MODELS OF CARS, WHETHER THEY HAVE LICENSE PLATE OR NOT. AND THEY WILL PING US THE INFORMATION AND THE DIFFERENT INTERSECTIONS AND THE LOCATIONS WITH MORE SURVEILLANCE. >> ALSO COMES PUSHBACK. ONE OF THE GROUPS AGAINST THESE CAMERAS IS THE ELECTRONIC FRONTIER FOUNDATION. >> ALPS ARE A FORM OF DRAGNET SURVEILLANCE. THEY RECORD EVERYONE'S MOVEMENTS ALL ACROSS THE CITY. THEY DON'T JUST RECORD THE MOVEMENTS OF CRIMINALS AND HELP STOP CRIMES, BUT THEY'RE ALSO RECORDING EVERYWHERE. ME AND YOU GO. >> THEY'RE ALSO CONCERNED OF A POSSIBLE HACK. >> THIS CREATES A LARGE REPOSITORY OF PEOPLE'S LOCATIONS , WHICH, YOU KNOW, COULD GO BACK FOR SEVERAL MONTHS DEPENDING ON HOW LONG SFPD DECIDES TO KEEP IT. AND IT COULD REPRESENT SOME REALLY, PERSONAL INFORMATION. >> MAYOR BREED SAID SHE'S AWARE OF THE PRIVACY CONCERNS, BUT SAID THESE CAMERAS ARE NOT BEING USED FOR MOVING VIOLATIONS AND THEY DON'T USE FACIAL RECOGNITION TECHNOLOGY. >> OUR GOAL IS SAFETY. OUR GOAL IS NOT TO INVADE SOMEBODY'S PRIVACY. BUT AT THE END OF THE DAY, WE NEED THIS TYPE OF TECHNOLOGY AND THESE TYPE OF TOOLS IN ORDER TO PROTECT THE PUBLIC. AND THERE ARE TRADE OFFS . >> SAN FRANCISCO'S USING A $17.3 MILLION GRANT FROM THE STATE TO CREATE THIS NETWORK OF CAMERAS. THE REMAINING 300 CAMERAS ARE SET