Fair Work Ombudsman Sandra Parker to crack down on migrant worker ripoffs; working with ABC on alleged underpayment of 2,560 casual staff

Fast food retailers, restaurants and cafes have been put on notice as the Fair Work Ombudsman turns up the heat on bosses who rip off their staff and exploit vulnerable migrant workers.

Ombudsman Sandra Parker says her office will use new powers to name, shame and take dodgy employers to court.

The crackdown comes after operators of three Tokyo Sushi outlets in regional New South Wales were fined more than 380-thousand-dollars for underpaying workers including junior employees and visa holders.

In her first broadcast interview since being appointed last year, Sandra Parker spoke from Canberra with the ABC's senior business correspondent Peter Ryan.