1984 Rajneeshee bioterror attack
Several incidents leading to the decline of the movement occurred in the county seat and largest city of Wasco County, Oregon, The Dalles.
In 1984, Rajneeshee teams engaged in a bio-terror attack, poisoning salad products with salmonella at local restaurants and shops, poisoning 751 people. The motivation behind the attack was to rig the local election allowing the Rajneeshees to gain political power in the city and county.
The Rajneesh were also discovered to have been running what was called "the longest wiretapping operation ever uncovered."[65]
These revelations brought criminal charges against several Rajneesh leaders, including Ma Anand Sheela, personal secretary to Rajneesh, who pleaded guilty to charges of attempted murder and assault.[66]
The convictions would eventually lead to the deportation of the leader of the movement, Rajneesh, along with a 10-year suspended sentence and $400,000 fine, in 1985..
https://en.wikipedia.org/wiki/Rajneesh_movement