Charmed Season 4 Episode 11 : Trial By Magic

While Phoebe performs jury duty in a murder case, she is hit with a premonition about the real killer, and must convince the rest of the jury that the defendant is not guilty without exposing magic. Meanwhile, Piper, Paige and Leo try help Phoebe find the real murderer, but they stumble upon a gang of demons involved and they must solve the crime and keep Paige's friend out of danger before Phoebe gets thrown off the jury.