The usual way most people are arrested for DWI in the Bronx is through a car stop by the NYPD. The police officer will pull you over claiming that you have violated a traffic law. The officer will then ask you if you have been drinking. If you answer in the positive, you are half way to jail. The officer will take you to a precinct and will ask you to take a breathalyzer test. If you refuse, you run the risk of having your license suspended for a year.
You will also be asked to take physical coordination tests. Most of these tests are designed for your to fail and are not fair to the average person who is under the stress of arrest. After you have taken the tests you will be processed and taken to a courthouse in the Bronx where you will see a judge for your arraignment.