Not even a day ago, Scotland Yard's priorities were to handle their own officers under investigation by the Gambling Commission and nothing else.

However, as the days have passed, it is evident that the problem has grown more complicated and is now outside the purview of the Gambling Commission.

The investigative authorities' realization that they must determine whether certain candidates violated the law against misbehavior in public office is what has changed.

The police will now handle this as it is outside the purview of the Gambling Commission, which started the original investigation.

This means the prospect of mainly Conservative candidates, including the prime minister's closest aide, potentially being interviewed under caution, maybe even this side of election day.

You could see how tetchy the subject made Rishi Sunak in the interview with the broadcast pool earlier today.

His reluctance to give more details about his conversations with Craig Williams, who was his link man with a fractious, rebellious parliamentary party, spoke volumes.

The prime minister will argue he has been told by the Gambling Commission not to comment, and as PM, commenting on police inquiries could be seen to jeopardise their operational independence.

However, Sir Keir Starmer and Labour defied Gambling Commission instructions to keep quiet about the investigation into one of their candidates.

There is no confirmation of an active police investigation into Mr Williams specifically.

With seven days until the election, the voters in his former Montgomeryshire constituency may feel they have a right to know the full facts before polling day.

After the high of Wednesday's debate for Mr Sunak, the endless repercussions of the gambling scandal are clouding what could be his final few days in office.