Central Otago police have uncovered a booby-trapped cannabis plot near Glenorchy.
Detective Senior Sergeant Malcolm Inglis said six cannabis plants were recovered from an area near the gravel pit at the entrance of Glenorchy.
"Of real concern to police is that the plot had been booby trapped and was surrounded by planks of wood with large nails sticking up," he said.
"The booby traps were hidden in long grass and someone could have easily stood on them causing serious injury."
There was evidence other plants were grown in the area and harvested.