The case review, stamped with "secret" and "highly protected" on each page, opens with a caveat that its contents are likely to reveal the identity of a police informant and would be "highly likely" to endanger their life.

The 2012 document, publicly released on Friday, criticises the ethical and legal implications of Ms Gobbo's informing as well as the "disjointed" way her files were managed, with some reports missing or out of sequence.

The review states that her handlers would initially submit reports following conversations with Ms Gobbo straight away - but this "blew out" to weeks, months or even years.

It also describes Ms Gobbo - referred to as human source 3838 - as "high risk" and someone with various changing alliances and agendas.

"3838 became prolific in reporting matters to handlers and on a number of occasions is on record somewhat bizarrely expressing desires to be the best human source to have ever assisted Victoria Police," Mr Comrie says in the report.

"(She) can be envisaged to be a complex, manipulative and conniving person who became increasingly difficult to deal with and who seemingly had a variety of changing alliances and agendas.

"On occasions when handlers did try and draw away from and limit contact with 3838, such actions would invariably stimulate 3838 to become even more productive with offerings of intoxicatingly valuable information."

He added Ms Gobbo "seemed to have some form of addiction to the relationship".

She contacted her handlers several times a day, seven days a week - up to eight calls of substance a day, making it difficult for handlers to manage resulting workflows, the report shows.

It also looks at the risks she faced that weren't adequately addressed by Victoria Police, including her mental wellbeing.

Mr Comrie noted Ms Gobbo was out socialising with criminals most nights despite her heavy workloads, health problems, and calling handlers several times a day, in a lifestyle that is "clearly unsustainable", with her welfare a secondary consideration.

"As early as April 2006, handlers have noted that 3838 may have some form of psychiatric condition," Mr Comrie says.

However, he noted that when a psychologist was finally provided for Ms Gobbo, she thought they lacked credibility and attempted to bully them.

The document also details a distraught Ms Gobbo having approached police from the Major Drug Investigation Division, stating her client Tony Mokbel's clan planned to bribe corrupt police officers in return for having their drug charges withdrawn.

Australian Associated Press