A homeless woman attacked a string of cops - punching one and spitting on others, a court heard.Warda Mohammed, 31, a refugee from Somalia with a history of drug use and violence, has now been made the subject of a hospital order under the Mental Health Act after being diagnosed with paranoid schizophrenia.A member of the public alerted police when they noticed someone with a hammer close to where children were playing in Piccadilly Gardens on a warm sunny day in May last year.A police constable