Knockout drops in the drink: Eintracht Frankfurt reacts after a terrible incident - lids are intended to increase safety. Visitors are asked to exercise particular caution when consuming food and drinks.
If you suspect or feel unwell, security staff should be notified immediately. Protective covers are available free of charge at the kiosk upon request. Knockout drops are usually tasteless and odorless chemicals that perpetrators put into their victims' drinks. The substances act largely like drugs. After a few minutes, the victims are dizzy, can no longer think or act clearly and feel like they are drunk.