A new HIV charity will target sex workers, intravenous drug users and prisoners, groups it claims are being neglected by the National Aids Trust and the Terrence Higgins Trust.
Founder director Dr Delphine Valette, who used to work at NAT, said UK Aids and Human Rights would focus on human rights law rather than UK policy.
"We feel NAT and THT lack a legal dimension," she said. "They say discrimination is bad because it impacts on public health; we say discrimination is illegal."
The charity will also press the Government to keep its promise to comply with the 2001 UN Declaration of Commitment on HIV/Aids.