Footage obtained by 9News shows Roberta being led away from her Melbourne home by police in handcuffs.
According to reports, a man - who was involved in a reality show following Roberta and her daughter - was kidnapped and held at gunpoint after being asked to pay $20,000.
9News reports that one man has already been charged in relation to the kidnapping, but released on bail.
Roberta has been taken into custody but no formal charges have been made.
This is a developing story.
