Proposed gambling law reforms to limit betting ads are facing criticism for not being tough enough. (Darren England/AAP PHOTOS)Proposed gambling law reforms to limit betting ads are facing criticism for not being tough enough. (Darren England/AAP PHOTOS) Credit: AAPSenior ministers are defending proposed changes to gambling reforms as calls to go further grow from both inside and outside the Labor Party. The government was working with other parties and getting the reforms right was complex, Deputy Prime Minister Richard Marles said. Mr Marles said the gambling laws were the strongest brought before parliament.