Brasilia, Sep 19 (IANS): For the first time in Brazil's history, a woman has taken over the prosecutor general's post, replacing Rodrigo Janot, who held the position for four years.

Raquel Dodge was sworn in as the new prosecutor general on Monday in the presence of President Michel Temer and Supreme Court President Carmen Lucia, reports Xinhua news agency.

In her inauguration speech, Dodge vowed to "defend democracy, watch over the common good and the environment, and guarantee that nobody is above the law".

The 55-year-old is taking over at a difficult time. She will have to continue Operation Car Wash, the investigation into the Petrobras corruption scam, which saw over 100 politicians charged.

Dodge was named to the post by Temer but the President was charged by Janot for a second time last week for obstruction of justice and illicit association.

The first charge was made earlier this year for corruption but was shelved by the Chamber of Deputies.