The Metropolitan Police has ended its investigation into the general election betting scandal.
The offences being investigated did not meet the “high bar” to prove misconduct in public office, the force said on Friday.
The Gambling Commission is still investigating potential breaches of the Gambling Act.
Police also said an officer attached to the Royalty and Specialist Protection Command – arrested in June on suspicion of misconduct in public office – would have no further action taken against him.
Politicians and police officers were placed under investigation earlier this year after it was alleged they had used insider information to place bets on the date of the general election.
