The man, Jean Charles de Menezes, was shot seven times in the head on July 22, 2005 -- two weeks after three bombs exploded on three London Underground trains, killing 52 people, and a day after smaller explosions took place on the London Underground.
London's Independent newspaper says the Crown Prosecution Service, similar to the U.S. Attorney General's office, will announce the outcome of the investigation on Monday.
Rather than bring manslaughter or murder charges against the two officers who shot the Brazilian -- or to their surveillance team or commanding officers -- the prosecution service will likely charge the police department overall under Britain's heath and safety laws, the Independent says.
Under those laws, the police department would be accused of failing in its duty to protect the health and safety of Menezes. If found guilty the department would face an unlimited fine, the newspaper says.