The police watchdog has announced that an investigation into Boris Johnson's involvement in American technology entrepreneur Jennifer Arcuri could be published before the election.

The Independent Police Department (IOPC) strongly denied reports postponing the announcement of a "possible crime" investigation by the Prime Minister until after the Christmas poll.

As mayor of London, Mr. Johnson was responsible for policing and prompted the IOPC to participate in the investigation into whether there was a conflict of interest regarding the treatment of Ms. Arcuri due to the couple's friendship.

Ms. Arcuri, a former model, received a £ 100,000 scholarship last year for her firm, Hacker House, and accompanied Mr. Johnson on several trade missions while at City Hall.

Opposition politicians reacted with anger to a report in The Observer Citing the sources in the IOPC who said it was about to announce whether it was a criminal investigation, they decided to postpone the election.

However the IOPC told The Independent that it was still possible to make the decision before the election on 12 December – but it was suspected that it is unlikely that it will be reported in time.

In a statement, the watchdog said, "The IOPC strongly rejects the allegations made in published claims The Observer, This matter has not been finalized.

"We have not postponed any announcements about the status of this transfer.

"Our assessment of this matter is ongoing, as we continue to gather information and seek legal advice."

The news will strike the prime minister as he tries to get to the front line after a challenging campaign launch, which is marred by the resignation of a Cabinet minister.

However, it is unlikely that the dispute over his friendship with Ms. Arcuri will abate. The London Assembly has also launched an investigation, but it has now interrupted its efforts at the request of the IOPC.

A third investigation, commissioned by London Mayor Sadiq Khan, was temporarily suspended at the request of the guard dog.

Labor's Shadow Minister Jon Trickett condemned any delay in publishing the results.

He said, "This is an unacceptable decision and should be reversed immediately."

Caroline Pidgeon, Lib Dem member of the London Assembly's oversight committee, said, "It raises questions about how independent the IOPC really is, and whether the prime minister's lawyers have exerted undue pressure."

The Prime Minister has denied any inappropriateness.