premise: Australian Guantanamo Bay detainee David Hicks has won British citizenship, opening the door for a possible bid to have him freed from the US detention facility in Cuba. Justice Lawrence Collins of the British High Court has overturned the British Government's refusal of citizenship to Hicks, whose mother was born in England. Justice Collins said the Government had "no power to withhold or deprive citizenship". Justice Collins said: "In my view it would be improper to fail to give assistance which otherwise would have been given, simply because the claimant was believed to be involved in terrorism and has not had any previous connection with this country." Hicks' lawyer, Stephen Grosz, said the decision was a breakthrough. He said there was now no reason why Hicks should not enjoy the same protection as the nine other British citizens released without charge from Guantanamo Bay on representations of the British Government.
hypothesis: Stephen Grosz is the British lawyer of David Hicks.