A 37-year-old woman was arrested yesterday in connection with the discovery of an explosive device outside the home of a woman connected to a guinea pig breeding farm.
Staffordshire Police said the woman was detained in the Burntwood area of the county on suspicion of attempting to cause arson with intent to endanger life. She was interviewed at Burton-upon-Trent police station.
The device, which did not detonate, was discovered in Burton-upon-Trent on March 9.
It is thought to have been part of a long-running campaign of intimidation by animal rights activists against people connected to Darley Oaks Farm in Newchurch, Staffordshire, where guinea pigs are bred for medical research.
Police are currently hunting grave-robbers who stole the remains of 82-year-old Gladys Hammond, who had family links to the farm, from the churchyard in Yoxall.