A £20,000 reward is being offered in the hunt for an attacker who stabbed a police officer last month.
The 30-year-old was attacked in North Ayrshire while three officers were investigating a report of a break-in at a property in Arthur Street, Stevenston, during the early hours of 18 October.
At the time, Chief Superintendent Raymond Higgins branded the attack “despicable”.
The Scottish Police Federation (SPF) reported that the officer sustained a “significant injury”, but colleagues would rally round.
The force’s union condemned the “traumatic incident” and said it showed the “unpredictable nature of policing”.
No one else was injured and, to date, no one has been charged over the stabbing.
Crimestoppers is now offering a reward of up to £20,000 for information that leads to a conviction in connection with the case.
The charity, which is independent of the police, guarantees the anonymity of any individual who comes forward.
Read more from Sky News:
Woman accused of 1996 murder was ‘angry’ that teen was ‘seeing her partner’
Brianna Ghey murder suspect ‘tried to kill her with overdose weeks before fatal stabbing’
Be the first to get Breaking News
Install the Sky News app for free
Angela Parker, Crimestoppers national manager for Scotland, said: “Whilst we are not the police, our charity works closely with them every day by passing on essential tip-offs given to us anonymously.
“Our role is vital in keeping people and communities safe.
“We understand that it can be difficult to come forward with crime information, which is why our charity is here to support anyone who wants to make a difference but feels unable to speak directly to law enforcement.”