In 2009, Alex Lewenberg was viciously bashed by an intruder in his city apartment. Credit:Craig Abraham

On Tuesday, lawyer became client in the Victorian Civil and Administrative Tribunal, as Mr Lewenberg faced allegations he pressured a victim of the notorious paedophile to stay silent because they were both Jews.

He has represented Billy "The Texan" Longley, Boris "The Black Diamond" Beljajev, Tony Mokbel's brother and murdered police informant Terrence Hodson.

Paedophile David Cyprys was sentenced to eight years jail in 2013. Credit:Jason South

The Victorian Legal Services Commissioner has accused Mr Lewenberg of "professional misconduct" over two incidents where he complained about the victim helping police.

In a secretly recorded telephone conversation, revealed by Fairfax Media, Mr Lewenberg, a Russian-born Jew, told the victim, known as AVB:

"I am not exactly delighted that another Yid [Jew] would assist police against an accused no matter whatever he is accused of and that is the reason why I was very disappointed," Mr Lewenberg said in October 2011.

"Because there is a tradition, if not a religious requirement, that you do not assist against Abraham."

Mr Lewenberg has admitted that he made the comments, along with similar remarks a month earlier in a bail hearing for Cyprys at the Melbourne Magistrates Court in September 2011. Cyprys was sentenced to eight years jail in 2013.