Fathers 4 Justice said they were resuming "direct action"
Two fathers' rights activists who held a roof-top protest at the south London home of Labour deputy leader Harriet Harman have been bailed by police.
Jolly Stanesby and Mark Harris, both of south Devon, wore superhero costumes and unfurled a banner saying: "A father is for life, not just conception."
The Fathers 4 Justice protest started on Sunday in Herne Hill and continued for more than 24 hours.
Both men have been bailed until 16 July pending further police inquiries.
Mr Stanesby, from Ivybridge, and Mr Harris had said they intended to remain at the property until the former minister of justice read Mr Harris's book, Family Court Hell.
They said the protest was to highlight the fact that fathers were being made redundant both emotionally by the courts and now biologically by the new Human Fertilisation and Embryology Bill.
During the protest on Sunday, Ms Harman, who is also minister for women and equality, spent more than seven hours inside her home.
Fathers 4 Justice founder Matt O'Connor has said the government had "refused all dialogue with F4J for the past two years" and the group would now resume "a full-scale campaign of direct action against the government, its ministers and the judiciary".
A Ministry of Justice spokesman said the government had carried out a public consultation on improving the openness of family courts.
He added: "This is an important and complex area of policy about which people have strong views. We must ensure we get it right."