Police seized drugs and weapons during a two-day operation in Aberdeen.
Police in the north-east have carried out an operation aimed at clamping down on violent incidents in the region.
More than than 150 knives or bladed weapons have been confiscated by security staff at Aberdeen Sheriff Court since the beginning of last year.
Hundreds of firearms, air weapons and ammunition surrendered to police in the north-east have been destroyed.
Parents have received letters setting out the policy on weapons in Aberdeen schools.
A recommendation to change the law to allow pupils to be searched in school will not be taken forward.
Pens, plastic bottles, chairs, lighters, a cup of tea, a pool ball and bodily waste are just some of the items that were used to assault staff at North-east prisons.