ATTOCK - Police have arrested four drug smugglers and recovered 38kg of charas from their possession. Cases under the acts have been registered against them and all have been sent behind the bars.  In the first attempt Hazro police arrested two drug smugglers who were travelling by a car having 36kg of charas in their possession. Those arrested include driver Murad Gul and Muhammad Iqbal. In another attempt, police arrested two drug smugglers namely Ghani Gul and Ghulam Maqsood from two different locations and recovered 2.8kg of charas from their possession.