British animal rights activists ghoulishly dug up the body of Gladys Hammond and are holding it hostage until her son-in-law stops raising guinea pigs for medical experiments. The grave robbery is the culmination of a six year intimidation campaign against Darley Oaks Farm animal raising facility. Police have now arrested 5 activists in the case, but Ms. Hammond's body is still missing.
Of course, old-fashioned grave robbers did it to supply medical schools with cadavers for surgical and anatomical research. In this case, the activists robbed a grave in order to deny patients the benefits of medical research.