Deighton Pierce Glynn solicitors, the legal firm representing Duwayne Brooks have published a document reportedly authorising the use of 'covert audio recording'.
Police chiefs admitted on Friday authorising the secret recording of at least one meeting involving the friend of murdered teenager Stephen Lawrence, his lawyer said after the meeting.
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They say Great Ormond Street Hospital has denied their request and the baby's life-support will be switched off on Friday.
He is accused of raudulently attempting to gain money and housing by pretending he had lost family members.
The High Court made the ruling after hearing an application by the Association of British Commuters for a judicial review.