Shami Chakrabarti has been appointed to the role of shadow Attorney General in Jeremy Corbyn’s Cabinet.
Baroness Chakrabarti, who led the Liberty campaign group for over a decade, was awarded the role just five months after becoming a member of the Labour Party.
The human rights lawyer was made a peer by Mr Corbyn last month following her inquiry into alleged anti-Semitism in Labour.
Mr Corbyn's decision to appoint Baroness Chakrabati to his shadow Cabinet may be considered controversial as some critics of the Labour leader branded her inquiry a “whitewash”.
The Attorney General is the Government’s chief legal advisor and is drawn from the legislature; their shadow holds them to account and develops alternative policies.
In his shadow Cabinet reshuffle Mr Corbyn also handed a major promotion to his long-time ally Diane Abbott, making her shadow Home Secretary, and made veteran Nick Brown - a long-standing ally of former leader Gordon Brown - chief whip, replacing Rosie Winterton.
Mr Corbyn began the reshuffle of his frontbench team after the mass walk-out of shadow Cabinet members opposed to him in the aftermath of the Brexit vote in June.