Toxicology analysis Scrutiny of the balloon pilot , Lance Hopping , after the accident Catastrophe tested Testing positive for tetrahydrocannabinol ( THC ) , suggesting he may have been under the influence of cannabis at the time of the crash Catastrophe , which ultimately led to Causation the error in judgement Deciding .

at around 9.30 am , jan molenaar fired Use_firearm on new zealand police officers executing Action a cannabis search warrant at his house at 41 chaucer road , killing Killing senior constable len snee and seriously injuring Bodily_harm senior constables bruce miller and grant diver .

The event was covered by cannabis publications , local and national news outlets , and the HBO television series `` Vice '' .