Follow the weapons trail
Congratulations to the authorities for successful raids.
Where there's smoke, there's fire, so there are probably other serious caches of weapons waiting to be discovered. War weapons are made to maim and kill, their holders should be prosecuted and penalised to the full extent of the law. Also, authorities should follow the weapons trail as far as it goes. In other words, who paid for them? Who arranged for their purchase? Who provided the weapons? What were they for? I'll believe they were just for self-defence if you believe I just killed a cow for the meat in my sandwich.