Customs has arrested three men this month for trading images and videos of children being sexually abused, exploited and tortured, and it is warning that offenders will be caught.
After a tip off from overseas, a 29-year-old Taranaki man was arrested for uploading material onto a popular social networking site and faces up to 14 years imprisonment.
A 23-year-old man was arrested and charged with exporting objectionable publications.
Customs said further charges are likely after his electronic devices are searched.
Last week a 22-year-old man was charged in Dunedin after a messaging app reported he was sending child exploitation material to other users.
Customs said offenders need to be aware that being web-based or on social media apps doesn't guarantee them anonymity because there is a global network of organisations and agencies out to catch them.