All of you have good points, it's just a minor suggestion, nothing really changeable for the game. It's just a bit annoying in those situations which are really not that often (atleast to me). Thanks for responding.
Currently, unarmed refers to no weapon held in the player's hand. Weapons in their inventory are not 'seen'. For example if a cop sees a suspect and they don't have a gun in their hands, the cop sees them as unarmed. Cops do not have X-Ray glasses to see through people's clothes etc. to know whether they are hiding weapons.
The only suggestion I am going to implement here is that 'warning suspect is unarmed' should not come up if they have attacked recently.