An Iranian-American university professor and senior political analyst, Kaveh Afrasiabi, has detailed US police brutality against him while in custody in Cambridge. Speaking to Press TV in an exclusive interview on Thurday, Afrasiabi said that police denied him his constitutional rights and racially discriminated against him. "They put me alone in van and they drove in full speed and [suddenly] they came to a full stop. And then I went flying into a metal shield and my head smashed against the bar. I was taken by an ambulance to a hospital, where I was diagnosed with severe head concussion and was treated," Afrasiabi told Press TV on Thursday. Afrasiabi said his arrest was over an un-paid driving ticket dating back more than two decades ago. "The Cambridge police gave me a racist attitude, asked for my [drivers] license and arrested me on the spot on a flimsy basis that some 25 years ago I did not pay a driving violation fine — which I have [paid]," he said. The American-Iranian Friendship Committee also confirmed that Afrasiabi had been the victim of police brutality, accusing US law enforcement officers of injuring the Iranian-American academic while in custody in Cambridge. Afrasiabi also accused police of denying his constitutional right to contact his family or his lawyer. "I asked them (police) for the right to make a phone call so that I could have a family member or a lawyer to come. They denied that to me," he said. Afrasiabi says the Cambridge police are trying ...