Parents of children as young as four could be told to sign letters pledging to educate them on the dangers of taking knives to school.

The newly-enhanced “Anti-Weapon/Knife Crime Policy” in Aberdeen was prepared in the wake of the stabbing of 16-year-old Bailey Gwynne in October 2015.

It will be handed to councillors in Aberdeen City at next week’s Education and Children’s Services Committee meeting for approval.

One of the proposals is for parents and guardians – and potentially pupils as young as eight – to sign letters which detail the city council’s policy on knives in schools.

The letter, which has already gone out to parents of S1 pupils under a policy agreed in November, would be included in induction packs sent out when children start primary one.

It will also detail how teachers should react if they suspect that a pupil may be in possession of a blade or another weapon.

The move emerged in the week that the identity of Bailey’s killer, Daniel Stroud, was made public for the first time after he turned 18 and was no longer protected by legal anonymity.

Councillor Lesley Dunbar, vice-convener of Aberdeen City Council's Education and Children’s Services Committee, said: “The policy that we put forward comes out of the recommendations of the review into the death of Bailey Gwynne.

“We had to make a whole school approach not determined just by age.

“We want to make sure that from primary 1 age, parents of children are assured and confident about the policy.”

“It’s important that children, parents and teaching staff can all work together to ensure that knife crime in schools can be reduced.

"There needs to be a mechanism in place for children to report any suspicions they might have.”

Councillor Martin Greig, who also serves on the committee, said: “It’s essential that the council implements an effective knife policy.

“Children need to be educated from a young age on the dangers and consequences of carrying knives.

“There also needs to be a way for them to report any suspicions they have.

“The north-east may not be well known for knife crime, but we have still experienced some shocking examples.

“This is clearly an area that needs to be treated with very great seriousness.

“It must be made clear that carrying and using knives is completely unacceptable.”

An independent review, led by child protection expert Andrew Lowe, found Bailey's death might have been avoided if those who knew his killer carried weapons had reported it to staff.

Mr Lowe made 21 recommendations, including calling on the Scottish Government to consider changing the law to give teachers more power to search pupils.