A pickup truck allegedly carrying the cannabis was making its way across the state, where only medicinal marijuana is legal.
To qualify as a vampire for the gathering, revellers must wear black trousers or dresses, black shoes, waistcoats, shirts, black capes or collared overcoats and fangs on their top row of teeth.
Researchers the Ryan Institute at the National University of Ireland looked at 36 species and found the venom of the smallest was a hundred times more powerful than that of the largest.
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