Three people in Daryl Maguire's cash-for-visa scheme could be stripped of citizenship

Home affairs will be tough-minded' if fraud is proven, Michael Pezzullo tells Senate estimates

Three Australians who received visas with the help of the disgraced former New South Wales Liberal MP Daryl Maguire could be stripped of their citizenship if it was obtained through fraud, the home affairs department chief has warned.

Michael Pezzullo made the threat in Senate estimates on Friday when he promised his department would be tough-minded" if fraud was proven after a departmental and Australian Border Force investigation into the cash-for-visa scheme.