The Independent Police Complaints Commission in Britain is reported to have conceded that all the officers involved in the fatal shooting of Brazilian Jean Charles de Menezes could face charges.
The IPCC delivered the report of its inquiry into the shooting to the Crown Prosecution Service today.
Mr de Menezes was shot dead by police at a London underground station six months ago. Police officers claimed that they thought he was a suicide bomber.
The shooting occurred a day after the failed 21 July 2005 attacks in London.
The CPS has also received a full file of evidence on the case, which it is to study before deciding whether any police officers should face charges.
The Independent Police Complaints Commission report, which will not be published until after any trial or inquest arising from the case, is also to be sent to ministers, Scotland Yard, the Metropolitan Police Authority and the Inner South London Coroner.
About ten officers are believed to have been involved in the shooting and the IPCC report is understood to suggest that criminal offences may have been committed.
This afternoon, the family of Jean Charles de Menezes expressed their frustration at the fact that they had not been given the report despite the fact that it had been circulated to the police and to the Home Office.
A separate investigation by the IPCC into the handling of the affair by the Metropolitan Police chief, Sir Ian Blair, is also under way.