Westport police say they do not have enough evidence to lay charges over allegations 1080 protesters damaged a Department of Conservation (DOC) staff member's car.
Sergeant Malcolm Lamont said a nail had been stuck into a tyre and DOC had named a 1080 protester as the offender.
He was still investigating the incident but so far there was insufficient evidence to lay charges.
DOC Buller operations manager Bob Dickson told The Press yesterday that staff had been threatened and abused by anti-1080 protesters during the Battle for our Birds poison drop.
He said DOC had employed security guards to protect staff after threats were made against property and families both online and verbally.