Mr Cocker said that while young people tended to embrace technology more than others, the sharing of intimate images cut across age groups.
Instances where compromising images of someone were put onlineby an ex-partner were common, he said.
"It often features as part of relationship breakdowns, even just the threat of it features in relationship breakdowns quite often - it comes up in bullying cases.
"Certainly it's increasingly common to produce images that you are comfortable with in a relationship, but are not comfortable with after a relationship."
The Law Commission also recommended that marketers be made to abide by a Do Not Call telephone register run by the Marketing Association.
The register allows more than 100,000 New Zealanders to state they do not want to receive marketing phone calls, but participation in the scheme by marketing companies is voluntary at the moment.
Keith Norris, the Marketing Association's director of public affairs, said New Zealanders signed up to the register would notice a real difference if it became compulsory.
"Most large organisations are already registered on the system.
"I think the major effect will be felt in small businesses who use the telephone to find new customers."
Mr Norris said companies in New Zealand using international call centres would still have to abide by the register if the commission's recommendations were adopted.