It's a shame that it has taken this long for the Philadelphia Police Department to get this kind of technology. It's even more of a shame that people drive like assholes bad enough to get pulled over in the first place.
An average traffic stop will take anywhere between 20 to 30 minutes, Zaffino said, with five to 10 minutes going toward writing the actual ticket. The scanner gets ticket-writing down to three to five minutes.
Source: Driver’s license scanners: this Philly police pilot technology cuts length of traffic stops nearly in half — Technically Philly