Arresting has always been a controversial topic, mainly because it is widely regarded as having little practical value beyond humiliating an unaware enemy.
To add incentive to arresting players, it'd be interesting if you can loot bodies, but ONLY those of arrested players. If you kill someone, they behave as they do currently. However, if you arrest a player, clicking V on them will allow you to drag items from their inventory into yours. This would allow players to possibly switch to a different pistol if they prefer, get more ammo for a weapon, snag a sniper off of a