In the African nation of Zambia, with a population of 13 million people, child rape is shocking.   According to a 2006 study by the Young Women's Christian Association (YWCA) located in the country's capital of Lusaka, an average of eight rape cases a week were reported by girls at the YWCA center. That doesn't include unreported rapes, or sexual crimes reported to other shelters.

When a 13-year-old girl was raped by her school teacher in Zambia in 2006, she had few options. Even if she went to a police station or hospital to have a DNA sample from her attacker collected, the chance of any evidence resulting in a prosecution was slim. The country's court system has never seen a conviction based on DNA evidence in a sexual assault case.