The GGD advises emergency services to prepare for clusters of severe agitation, hyperthermia, and seizures. A public warning is being prepared for nightlife areas in Amsterdam, Rotterdam, and Utrecht.
It sounds like you're referencing a few different things: (a Dutch public health institute), Cali (likely the region or a strain of cannabis), oversized (possibly clothing or product sizing), and crack (the drug or a slang for a problem/glitch). ggd cali oversized crack
Initial lab tests by the GGD’s drug monitoring unit show that while some samples do contain above-average cocaine purity (around 85–90% before conversion to crack), others are cut with levamisole and a synthetic stimulant resembling cathinones. This unpredictable composition increases the risk of overdose, psychosis, and skin necrosis. The GGD advises emergency services to prepare for