tonight's arlington's chief of police will be riding along with patrols cracking downra on drunk drivers. that's not unusual. us the interesting thing iss the chie f will be tweeting live et about what he sees. it's part of arlington police' increasing use of social media. new at 5:00, we have the story. >> reporter: more than one r: e billion combined users. that's how many people use facebook,
twitter and youtube. has it sunk in it? a billion. >> the time peopleeo spende on for example, pl facebook is amazing.az >> reporter: ifep there's one thing certaince about social media sites, you're sernd to find t people. >> we want to make sure we're casting the widest net possible. >> reporter: to reach them apd is on twitte r commisunicattwing realtime info to the masses as tasy did with traffic updates during the world series. >> we use
twitter for critical incidents if we need to evacuatene an area, we'll send that ha information outin realtime. >> reporter: they'>>re on facebook. >> face become'sco our feel good platform to putat the positive information about the police bo he department. pa >> reporter: a nd on ryoutube poste ing videos and public service announcements. today police can reach out to the average citizen sitting atci home on their couch. now that average person can play an increasinglyea active role r in helping police fightg crime. >> if i see something suspicions, okay, it may be too much trouble for me to call to provide that clue. but on social media if i see, hey, not just me, three or four person has alrea dy reported then i feel more comfortableom to putting my two cents. >> all those two cents might come atco a price, information overload. >> what if all of a sudden millions of clues flooded odin. do they have the personnel, do they have the expertise to deal with that kind of issue? >> reporter: perhaps too much information is better than no informationat at all. >> apd also has an emailing and texting service to get information out as quickly as they can.