Georgina Challen, who goes by Sally, said she killed her husband, Richard, in August of 2010, after suffering from emotional abuse. The following year, Challen, 65, was convicted of his murder and jailed for life.
In February, London's Court of Appeal quashed her conviction and ordered a new trial she killed her husband.
Challenge, who pleaded guilty to the murder charge but admitted manslaughter, was released on July 1.
At London's Old Bailey Friday, Judge Andrew Edis accepted her plea of manslaughter, sparing her a second murder trial, the Press Association reported. Prosecutor Caroline Carberry said she was suffering from an "adjustment disorder" at the time of her husband's death.
She wants to be sentenced for manslaughter later Friday.
Challenges heavily publicized case drew attention to coercive control as a form of domestic abuse. It became a criminal offense in England and Wales in 201
Teresa Parker, head of communication for UK charity Women's Aid, told CNN that her case "displays the long-term impact that coercive control has on survivors and the long-term trauma it can cause. It underpins the vast majority of domestic abuse and the term helps to explain the dynamics of power and control within abusive relationships. "
According to the campaign group Justice for Women, which supported her appeal, she said, "Her husband is bullied, humiliated and repeatedly cheated on her, without her. Hey, so controlled the couple's finances.
On August 14, 2010, Challenging him with a hammer at home in Surrey, southern England, planning to kill her afterward by jumping from the beachy head cliffs.
Harriet Wistrich, who co-founded Justice for Women, launched an appeal for her release, arguing that she was "not adequately recognized" in her initial
David wrote on Twitter Friday, "As a family we are overjoyed at todays and that it has brought to end the suffering we have endured together for the past 9 years."
"Our story has become The landmark case society needs to recognize the true severity of coercive control, "he said.
Teresa Parker called the judge's ruling "Fantastic news," adding, "We now need everyone to work in the criminal justice system to receive regular, up-to-date training on what coercive control is and how to use the legislation."