A man has been arrested and charged with sexual violation after giving massages at a Christchurch dance school.
Detective senior sergeant Scott Anderson said the 52-year-old was giving massages at the dance school when the alleged offending occurred.
Police would not identify the dance school, he said.
The police want to hear from anyone who has attended a Christchurch dance school and had concerns about similar behaviour.
"We take complaints such as this very seriously and there are no time limits on reporting such allegations," he said.
"Police will provide appropriate support and advice to anyone who comes forward."
The man is expected to appear in the Christchurch District Court today.