Before foodstuffs from countries outside of the EU can be imported into the country these are subject to border controls.
These checks are carried out by the Swedish National Food Agency (Livsmedelsverket), which has five border control checkpoints associated with ports and airports. One of these is located at Frihamnen in Stockholm.
It is primarily animal products that are checked at Frihamnen, but controls of certain vegetable products are also performed there. The importers of these products must submit advance notification of these shipments so that the appropriate controls can be carried out. These checks are performed in designated areas of premises that fulfil certain requirements.
Read more at the website of the National Food Agency (external link)