The Ministry of Justice said while this current presumption could be overturned if there was evidence that a parent could put the child at risk of harm, removing this particular law completely should lead to quicker decisions to restrict the involvement of abusive parents.
Ms Throssell, who was made an MBE in 2020 for her campaigning on behalf of children subjected to domestic abuse, said presumption had no place in a court of law.
“It’s not for judges who are strangers to children and only get snapshots of their lives to make decisions that then end their lives,” she said.
“There is this noise around parental rights but a deafening silence around children’s rights.”
Ms Throssell, who brought a picture of her sons to Westminster on Tuesday, said the change must come urgently as “children can’t wait”.
“Whilst there’s no change in place, children are still at risk of dying, children are still at risk of harm,” she said.
She said her love for her sons inspired her to keep fighting and she now hoped “that they’d be proud” of her achievement.
“It doesn’t feel like a victory or a win, but it does feel that there is a change coming in the country, and it will save so many children’s lives,” she said.
“I hope that one day I can go to where they sleep and say to them that all the children around them, all the children in this country, will have a safer, brighter future.”
Deputy Prime Minister David Lammy praised Ms Throssell, calling her “simply remarkable”.
“Her courage in the face of unimaginable tragedy, her determination to prevent other families from suffering as she has, and her relentless advocacy for children’s safety has been instrumental in bringing about this vital change,” he said.
“As we mark this important step forward in the law, I pay tribute to her sons, Jack and Paul, whose memory drives our commitment to ensuring no other child suffers a similar fate.”