Biometrics refers to the process used to identify individuals based on physical traits, like your eyes and fingerprints. When you arrive at the biometrics office you will present your appointment notification and valid photo identification (a passport or drivers license is recommended). You will then be presented with a short form to fill out with some personal information, including the forms your biometrics information is needed for (this should be included on your appointment notification). Lastly, your fingerprints will be taken either with ink or electronically. They may also take an iris scan. After your appointment, a background check will be run on the information you provided. While this may take up to a month, many DACA applicants are reporting turnaround times of around 2 weeks.