Tobacco addiction is a global epidemic that is increasingly ravaging countries and regions that can least afford its toll of disability, disease, lost productivity and death. The present study was conducted i) to assess the level of tobacco use among the security staffs ii) to check the effectiveness of brief intervention module in the reduction of tobacco use among security staffs in the experimental group. The present study was a true experimental study and the Randomized Control Trial pre-test post-test only design was used in the 60 samples at IMS & SUM Hospital among two different groups i.e. the experimental group and the control group. WHO ASSIST V3.0 questionnaire was used for data collection along with 1 month follow-up. A module was prepared on 5A's strategy of brief intervention by using the principles of Motivational Enhancement Therapy (MET) and Relapse Prevention Therapy (RPT) to reduce the tobacco use. Finally, the result concluded the paired 't' test between the pre-test and post-test experimental group regarding the level of tobacco use, which shows significant difference at p<0.05 indicates the level of tobacco use among the security staffs was significantly reduced after giving a brief intervention. The application of brief intervention module shows a significant difference in the level of tobacco use in the experimental group.