The failure of Victoria's police force and gambling regulator to properly investigate claims of wrongdoing at Melbourne's Crown Casino gives rise to the "very real possibility of corruption", according to independent federal MP Andrew Wilkie, who has referred the matter to the state's anti-corruption watchdog.

The outspoken gambling industry critic told Parliament on Wednesday morning that since 2017 he had given evidence of domestic violence, money laundering and poker machine tampering at Crown's Southbank casino to Victoria Police and the Victorian Commission for Gambling and Liquor Regulation.

Andrew Wilkie has called on Victoria's watchdog to investigate oversight of Crown. Credit:Joe Armao

“The VCGLR and Victoria Police have responded so bizarrely to all of these allegations as to raise the very real possibility of corruption," Mr Wilkie told Parliament on Wednesday.

He tabled a letter he has sent to Victoria's Independent Broad-based Anti-corruption Commission asking it to investigate the “peculiar power Crown has over the VCGLR and Victoria Police”.