(Reuters) -The Australian financial crimes regulator said on Monday it opened an investigation into British sports betting giant Entain Plc to assess whether it was complying with anti-money laundering and counter-terrorism financing laws. The Australian Transaction Reports and Analysis Centre (AUSTRAC) said it began the enforcement investigation after an extensive supervisory campaign covering the whole corporate bookmaking sector, without giving further details. “Reporting entities have a responsibility to ensure they identify, assess and manage risks of money laundering and terrorism financ…