The Crown Prosecution Service will determine whether a crime was committed, the Daily Mirror reported. The nurse, Jacintha Saldanha, put a call through to a colleague caring for the former Kate Middleton from two Australian disc jockeys posing as Queen Elizabeth and Prince Charles.
Mel Greig and Michael Christian of radio station 2Day FM in Sydney apologized for the prank after Saldanha's death, saying it led to "a tragic turn of events no one could have predicted or expected."
An inquest on Saldanha was adjourned. The CPS received the police file Wednesday.
The duchess, wife of Prince William, was hospitalized with severe morning sickness.
The nurse who took the call gave the DJs information on her condition.
"Following the death of Jacintha Saldanha, officers have liaised with the CPS as to whether any criminal offences had been committed in relation to the hoax call made to King Edward VII Hospital in the early hours of Tuesday December 4," a spokesman for the Metropolitan Police said.