There are a series of regulations that production companies need to consider before filming scenes that, according to the screenplay, require the use of firearms or explosives. Firstly, the weapons used, whether real or imitation, must be disabled so they cannot be used to shoot for real. If they are being used in normal working order, then firearms can only be used to fire blanks and they must have the appropriate documentation for their type.
In Spain, the organisation responsible for granting licences for the use of firearms is the Civil Guards department for the supervision of weapons and explosives. Each production's armourer must comply with all the requirements this department insists on, in order to be granted a licence. This does not however mean that informing the owner of the place where filming is to take place should be overlooked, because his permission is required; to avoid possible disagreements and misunderstandings, it is also a good idea to inform relevant authorities (Local Police, emergency services etc) and, as far as possible, people living nearby. The transport of explosives is governed by road traffic legislation.
