Police are in the best position to secure evidence of a crime. Physical evidence of a criminal sexual assault must be collected within 120 hours, though evidence can often be obtained from towels, sheets, clothes, etc. for much longer periods of time. If you believe you have been subjected to criminal sexual assault, you should go to the Hospital Emergency Room, before washing yourself or your clothing. The Sexual Assault Nurse Examiner (a specially trained nurse) at the hospital is usually on call 24 hours a day, 7 days a week (call the Emergency Room if you first want to speak to the nurse; ER will refer you). If a Complainant goes to the hospital, local police will be called, but they are not obligated to talk to the police or to pursue prosecution. Further, a local victim's advocate will be called to offer support and assistance.
Having the evidence collected in this manner will help to keep all options available, but will not obligate an individual to any course of action. Collecting evidence can assist the authorities in pursuing criminal charges, should the Complainant decide to do so later. The hospital staff will collect evidence, check for injuries, address pregnancy concerns and address the possibility of exposure to sexually transmitted infections. If you have changed clothing since the assault, bring the clothing you had on at the time of the assault with you to the hospital in a clean, sanitary container such as a clean paper grocery bag or wrapped in a clean sheet (plastic containers do not breathe, and may render evidence useless). If you have not changed clothes, bring a change of clothes with you to the hospital, if possible, as they will likely keep the clothes you are wearing as evidence. You can take a support person with you to the hospital, and they can accompany you through the exam, if you want. Do not disturb the crime scene-leave all sheets, towels, etc. that may bear evidence for the police to collect.