POLICE Scotland officers must report any failings in the force to "save any more people from dying", the brother of M9 crash victim Lamara Bell has said.

Martin Bell said failure to attended any 999 calls meant it was "only a matter of time before there is another fatality".

Mr Bell said: "They signed up to serve and protect and this isn't happening right now. The public have lost all faith and respect. Surely they didn't want to be in the force to be looked at like this.

"They need to come forward and make a change and save any more people dying. If 999 calls are being unattended it is serious and it's only a matter of time before there is another fatality due to this mess the system is in.

"It's time to stand up and make the change."

It comes days after an anonymous officer said the force was "on its knees" with high numbers of calls.

Ms Bell, 25, lay trapped in her car for three days after Police Scotland failed to respond to a 101 call reporting the crash because the details were not logged correctly.

She was found conscious inside the car near Stirling on 5 July, but died in hospital four days later. Her partner John Yuill, 28, also died in the crash.

On Thursday, an anonymous whistleblower to the BBC said control rooms were struggling to cope with the volume of calls, adding: "Treble nine calls are still not being actioned, so they are not being resourced and members of the public are not being given the service that they deserve."

Police Scotland said there was a "regular engagement" with the Scottish Police Federation, which represents officers up to the rank of chief inspector, as well as the Association of Scottish Police Superintendents and staff unions.

The spokesman also pointed to a report on call handling performance presented on Thursday which showed a high "grade of service".

He added: "Police Scotland is subject to scrutiny at local and national level in a number of different ways including local panels, SPA board and committees, HMICS and the Justice Committee."

A Scottish government spokesman said: "Agreement on the siting of Contact, Command and Control Centres is a matter for Police Scotland, with the oversight of the Scottish Police Authority."