DEFENCE has been rocked by yet another scandal, this time involving ADFA cadets allegedly subject to "initiation rituals" and "bastardisation" during a weekend pub crawl through Canberra.

Despite revealing seven cadets had been suspended and a full investigation launched, defence chiefs have refused to confirm details of what occurred during the latest incident, saying only that it involved "allegations of serious misconduct".

However, News Limited has been told the latest scandal happened when a total of 20 male cadets and midshipmen from the ADF, navy and air force were allegedly engaged in bullying, "stupid drinking games" and other hazing activities unbecoming of defence personnel.

The group was allegedly heavily intoxicated, starting the night at an ADFA bar "to get cheaper drinks" and then bar hopping through the Canberra CBD.

"They were engaged in hazing and bastardisation activities," one source said.

"There is a culture of alcohol abuse at ADFA and social media also plays a big part."

News Limited has also been told Defence has launched a crackdown on the Facebook accounts of ADFA cadets asking some to shut down their pages or beef up security following the latest scandal.

Vice Chief of the Defence Force Air Marshal Mark Binskin said senior personnel first became aware of the incident on Monday.

It is understood images of the incident were obtained by defence chiefs.

Air Marshal Binskin warned more suspensions were likely and the incident was being taken very seriously.

He said it was not indicative of the wider culture at ADFA and highlighted behaviour ongoing for "less than a year".

''I will not tolerate this sort of conduct, and I will not tolerate it in our future leaders," Air Marshal Binskin said.

''Enough is enough. People who exhibit unacceptable conduct need to understand their actions will have consequences and we will not tolerate what is alleged to have happened here."

It was understood search warrants were being considered by either the Military Police or AFP over the latest debacle, however as of last night they were still yet to be actioned.

Several prominent bars in Canberra, including Mooseheads and Uni Pub, yesterday told News Ltd they were not aware of any particular incident on Saturday night but that ADFA cadets had frequented their establishments.

The incident comes less than a week after the "Jedi Council" affair and ahead of an updated alcohol management strategy to be released by defence next week.

There are ongoing investigations into a number of ADFA-related incidents.

Chief of Army, Lieutenant General David Morrison, last week revealed three personnel had been suspended from duty following investigations into the production and distribution of material demeaning women.

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