"Some 160 rescue personnel in 15 ambulances and a helicopter converged on Handeloh on Friday afternoon and rushed the 29 to various clinics in the Hamburg area.
"The patients, aged between 24 and 56, were found suffering from delusions, breathing problems, racing hearts and cramps, some in life-threatening conditions, according to the public broadcaster NDR."
More at http://www.dw.com/en/psychedelic-drug-emergency-at-seminar-near-hamburg/a-18696121
Dosing people without their knowledge/consent is against one of the cardinal rules of psychedelics as made by Tim Leary. I have to say I agree with him. This kinda thing gives psychs and drug users a bad rep for sure. Still pretty funny though, and one of my all time fantasies that I will never fulfill is dosing a group of uninitiated. Sometimes it just isn't any fun having morals :(