Simon Crean calls for unions clean-up

Former Labor leader and ACTU president Simon Crean says unions need to clean-up or accept change following findings of the royal commission.

Former Labor leader Simon Crean says unions need to clean-up following the royal commission. (AAP)

Former ACTU president and Labor leader Simon Crean believes unions like the CFMEU need to "get their house in order" after "substantial evidence of wrongdoing".

In light of the findings of the royal commission into trade unions, Mr Crean said steps have to be taken to make sure thuggery and intimidation don't reoccur.

"I would prefer the unions get their house in order, but if they don't it will be put in order for them. They will have to accept the consequences," he told The Australian on Friday.