A trans university worker has been charged over social media comments on Ann Widdecombe's death.
Heather Herbert, a trans woman employed at the University of Aberdeen, had made the comments on the social media app Bluesky.
Police Scotland initially said there was no criminality in relation to the comments, but have since arrested and charged the individual.
A spokesman said: "We received reports on Saturday 11 July 2026 relating to a post made online."
They added: "Following further assessment, a 50-year-old has been arrested and charged in connection.
Ms Widdecombe, the former Conservative minister-turned-Reform UK spokeswoman, was found dead at her home in Haytor on Dartmoor at about 11.40am on Thursday after sustaining serious injuries.
Counter Terrorism Policing South East has confirmed it is leading the investigation after "new information and evidence came to light".
Her killing is now understood to be treated as politically motivated.
Police had suggested on multiple occasions that neither terrorism nor politics appeared to have played a part in the attack.
A 28-year-old white British man was arrested at an address in Rotherham, South Yorkshire, on Saturday evening, and is understood to be in police custody.
Under terror laws, police may be allowed to hold the 28-year-old for up to two weeks for questioning.
Speaking on the murder investigation, the head of National Counter Terrorism Policing (CTP), Laurence Taylor, said: "Building on the progress made by our colleagues in Devon and Cornwall Police, we now have new information and evidence that means Counter Terrorism Policing is now leading the investigation.
"We are pursuing multiple lines of enquiry to establish the motivation for this attack. Our priority is progressing this investigation quickly, with all the capabilities we have available to us. If anyone has any information, please share it with the police.
"We would like to thank local communities, the wider public and the media for their ongoing support and patience, and would ask them to continue to support us in the next stage of the investigation."
Home Secretary Shabana Mahmood confirmed she had spoken to Mr Taylor.
She told MPs: "Following new information and evidence, they are now leading on the investigation into the horrific murder of Ann Widdecombe.
"The police are pursuing multiple lines of enquiry to establish the motivation for this attack.
"I will be updating the House further this afternoon. My thoughts today remain with Ann’s family and friends, and all those who loved her."
