BBC | Oct. 31, 2018
Asia Bibi was convicted in 2010 after being accused of insulting the Prophet Muhammad in a row with her neighbours.
She always maintained her innocence, but has spent most of the past eight years in solitary confinement.
The landmark ruling has already set off violent protests by hardliners who support strong blasphemy laws.
Demonstrations against the verdict are being held in Karachi, Lahore, Peshawar and Multan. Clashes with police have been reported.
The Red Zone in the capital Islamabad, where the Supreme Court is located, has been sealed off by police, and paramilitary forces have been deployed to keep protesters away from the court.