An animal rights group is angry at how long it has taken the prosecution of people accused of abusing bobby calves to reach court.
Video footage of calves being abused on trucks and in a slaughterhouse in Waikato last August, sparked public outrage.
The Ministry for Primary Industries began investigating in September and the case is due to be heard in the Huntly District Court next month.
Hans Kriek from the group Save Animals From Exploitation (SAFE), which released the footage, said the ministry is not doing enough.
"There is no monitoring, that's the problem. The Ministry for Primary Industries only really respond to complaints and then it is already too late.
"So it would be really good for monitoring to be put in place, so that the people who handle these animals know they are (being) watched."
The prosecution has been very slow and would never have happened if activists had not used hidden cameras, he said.