Which 'Law & Order' spin-off focuses on sex crimes and stars Mariska Hargitay?

In 'The Cosby Show', what is the family's last name? In 'Family Matters', which nerdy neighbor is famous for "Did I do that?" In 'Everybody Loves Raymond', what is Ray's job? In 'Law & Order', what sound effect separates scenes? In 'NCIS', which actor played Leroy Jethro Gibbs? In 'CSI: Crime Scene Investigation', in which city is the original series set? In 'Miami Vice', what are the names of the two detectives? In 'Magnum, P.I.' (1980), which actor played Thomas Magnum?