The changes had to come from the senior ranks of the Defence Force, he said.
"What it demonstrates to me is that there's a need for re-emphasising programmes designed to ensure that young representatives of the Defence Force don't behave in a way that would put them at risk. It's particularly important for those ships visiting our neighbours, as we wouldn't look kindly on that behaviour on visits from other countries."
Defence Force spokesman Commander Phil Bradshaw said there was a "very comprehensive suite of tools" to deal with such behaviour, including a range of courses and training programmes.
"For those people who don't want to change their behaviour and don't match up, then we don't want to have them in our organisation any more."
Commander Bradshaw confirmed that Defence Force chief Lieutenant General Richard Rhys Jones had briefed Defence Minister Wayne Mapp on whether existing policies and training on alcohol were adequate.
The briefing looked at whether policies were "deep and wide enough, and is there anything more we can be doing" and more meetings were expected to be held.
Meanwhile, a press secretary for Dr Mapp rejected reported comments by Labour defence spokesman Iain Lees-Galloway that low morale from the "civilianisation" of 500 uniformed positions had contributed to a binge-drinking culture in the navy.
"The minister needs to take a long hard look at the process around civilianisation and be open to the idea that some of these events that have occurred over the last week or so may be linked," Mr Lees-Galloway told the Dominion Post last week.
Dr Mapp declined to personally respond but his press secretary said there was no link.