However the threat of a communist revolution and later invasion by foreign militaries forced the Icelandic government to rethink its position on police weaponry.

As a response to the forming of an illegal communist paramilitary unit the Icelandic police acquired Krag-Jørgensen rifles, Royal MM34 and Royal 7.65 mm pistols, and in late 1939 officers of the Capital Police were to form the officer corps of an Icelandic military defence force.

During the war, Agnar did his best to continue acquiring weapons despite the unwillingness of British occupational forces to permit such imports.

Nonetheless Reising .45 calibre sub-machine guns and Federal Laboratories grenade launchers were bought from the US along with tear gas.

There were many reasons for commissioning the unit, including a hijacked airliner that landed at Keflavík International Airport in 1976 and a few occasions of criminals using firearms against unarmed policemen.

It had become clear that the Icelandic Police needed an effective tool to combat such violent, armed situations.