Just took what's below from the Police Scotland website.
Security
It is an offence for a person in possession of an air weapon not to take reasonable precautions to prevent a person under 18 from gaining unauthorised access. You must take reasonable precautions for the safe custody of all air weapons possessed.
The Home Office has provided a brief guide to air weapon safety. This is available HERE.
The Home Office gives some simple steps as to security. The advice provided below is a good starting point for considering the security aspects of your air weapons:
• In many cases, it will be sufficient to store your air weapon in an existing, suitably robust, lockable cupboard – keeping the keys separate and secure.
• Alternatively, you could use a lock or locking device by which your air weapon can be attached to the fabric of a building, or to a fixed feature. Or you could use a security cord, lockable chain or similar device attached to a point of anchorage within the building.
• Even where children are very young, or are not normally present, it is preferable to use some form of security cord or similar device rather than simply storing your air weapon up high and out of reach.
• Anyone who already holds other firearms could use their existing gun cabinet for their air weapon, provided this does not compromise security.
• Air weapons should be stored within the occupied part of a building and not in an outbuilding, such as a garage or shed.
• If you keep a number of air weapons, you might find it useful to consider some of the security measures suggested for licensed firearms. This information can be found in the Firearms Security Handbook 2005, available on the Home Office website.
• When using your air weapon, the best advice is to keep it under close supervision at all times and to never leave it unattended.
• Where you have no option but to put your air weapon down for short periods, unload it and gather up all the ammunition. Steps should then be taken to prevent anyone from gaining unauthorised access to it. Where practicable, this could include attaching it to a fixed object using a security cord or similar device, or locking it out of sight in a car.
Kindest regards
Barrel
IF I WALKED ON WATER PEOPLE WOULD SAY I COULD NOT SWIM !