The Law Society is seeking a review of court security after a lawyer was concussed by a cellphone thrown across a courtroom.
A Crown prosecutor has been off work since being struck by the phone during a bail hearing on Monday in Nelson.
A person sitting in the public gallery is believed to have thrown the phone, which hit her head so hard it broke on impact.
Law Society vice-president Mark Wilton said the organisation didn't blame court security staff for the incident but wanted a review.
"Any serious incident such as this must be followed with a comprehensive reassessment of security levels and measures," he said.
"The freedom of lawyers to appear in court and to participate in our justice system without the fear that they will be assaulted or injured is extremely important."
A police spokeswoman said a 19-year-old woman would appear in Nelson District Court on November 9 over the incident.
She has been charged with assault.