The violent gang leader we can't deport is freed to walk the streets Home Office officials insisted Giwa's movements would be closely monitored and they will carry on the legal fight to have him deported. A Home Office spokeswoman said: "We vigorously opposed this individual's application for bail and we are very disappointed by the court's decision. He will be subject to rigorous monitoring, including an electronic tag, and we are continuing to fight for his removal from the UK. The High Court heard last October that at his peak Giwa was a "self-proclaimed "general" of the DSN" who could call on between 60 and 80 young men while controlling his patch through "lieutenants." Police said the criminal - whose street name is Dexter - was a "serious threat to the public" with a "clear propensity for violence." Police sergeant Darin Birmingham, who worked in a special unit to combat gang violence, told the High Court: "He believes that it is a right to carry weapons and knives and to use them on other young men. It is well known on the streets of Croydon that he has been charged with numerous offences but witnesses will not assist at court or pursuing allegations through fear. Judge Andrew Keyser QC said in his ruling that he had watched a film featuring Giwa on YouTube which was "quite alarming for its aggression." The two-minute clip shows Giwa saying: "I am the ******* general ... I have shanked [stabbed] a man in the ******* head. I have shanked a man in the neck. Giwa claimed asylum after arriving in Britain in 1999 with his twin brother on a flight from Lagos, Nigeria. He first got into trouble with the police in 2002, but was granted indefinite leave to remain in Britain in 2005. Giwa was convicted of two robberies in 2008. He would have been eligible for release in May 2009 but was moved straight to immigration detention because the length of his sentence meant he was eligible for automatic deportation. Since then Home Office officials have been trying to establish his nationality and obtain new travel documents. The Sierra Leone and Nigerian governments had both refused to accept Giwa was from their country, according to the court ruling. Other attempts by the Home Office to establish his nationality have proved inconclusive, including the linguistic tests. According to court papers, a voice analyst commissioned by officials found Giwa's speech patterns were "complicated" because he spoke with strong "south London English." But the experts did conclude there was evidence of "Nigerian English, rather than accents of English spoken in Sierra Leone." The court heard Giwa presented a risk of absconding or committing more crimes is he is freed, and that he had been visited in prison by a number of DSN associates. Giwa had previously told an immigration tribunal that he had been a member of DSN for "about a year" and that the YouTube video was "heavily edited and gave a misleading impression." It had, in fact, been an "imitation of the posturing of American gangster rap films," the court heard. John Walsh, Giwa's barrister, told the court that continuing to detain Giwa was unreasonable given that he had already spent more than four years in immigration detention beyond the end of his original jail term. Judge Keyser said it was a "troubling case" and acknowledged the Home Secretary had "devoted very considerable efforts" to achieve deportation. But he added it was "unlikely" that Giwa's detention would be "reasonable or lawful" three months from the date of the ruling in October. It was this decision which led to Giwa's release, which is believed to have taken place in the last few days.