Alcohol content in blood and iPhone

Picture this: you're with your friends. You have a great time. You drink. It is time to go home, and some of his friends are not sure whether it is good to drive. You even doubtful whether it is good to drive. You do not have pockets and support, which certainly will not call the police. How you choose to drive or hitch a ride?Well, if you have an iPhone in the IPod Touch, "is the statement that"