Law & Order: Special Victims Unit S12E03 - Behave

Rape victim, Vicki, is brought into the hospital initially claiming she has been attacked multiple times by the same man. Detectives Benson and Stabler are determined to help her, but she lives in such terror that she then denies she has been raped at all and refuses to submit to a rape kit. As Benson looks for a way to help, she is horrified to learn that there are police precincts and evidence labs across the country that never test their rape kits at all. The investigation soon leads her to Los Angeles where she meets Detective Rex Winters, who has information that could finally help Vicki get justice.