The Mental Health Foundation is calling for a formal review of police use of Tasers after figures released this week showed four out of 10 of those tasered in the past year were experiencing mental health issues.
But police say their use of force - including Tasers - against those suffering mental health problems is a symptom of a wider problem of how those people are dealt with, an issue they are already working with health agencies to address.
Numbers released by Police Minister Judith Collins this week showed that 37 of the 88 people tasered by police in the 11 months to August were "judged to be experiencing a mental health issue".
The figures were released in response to questions from Green MP Keith Locke, who was concerned police were too quick to use the 50,000-volt shock guns against people experiencing mental health problems rather than trying to calm them down verbally.
That was also the view of Mental Health Foundation chief executive Judi Clements.