You need a police certificate if you apply for a green card from abroad, even if you have no criminal record. Learn how to get your certificate.All individuals needing documentation of any criminal history, or proof of no criminal history, will be referred to the Texas Department of Public Safety. The applicant is required to completely fill the prescribed form in BLOCK LETTERS with a black pen and sign an application form. You can either fill this out online or on paper. You will have to include your name, date of birth, and complete mailing address. You will be required to complete an initial application, including fingerprints through FAST, to determine your eligibility. The next step in the process is obtaining proof that you were the victim of a crime. Reduce risk by: being polite and respectful; never arguing with or bad mouthing the officer; staying calm and in control of your words, body and emotions. This can help avoid delays in the immigration process.