narcotics –n. drugs that have a powerful effect on the mind and body whose use is highly controlled and often illegal
demolish –v. to tear down, destroy
exodus –n. the act of a group leaving a place
couriers –n. people who carry packages or letters from one place to another
deterrent –n. something that keeps people from doing some activity
rehabilitation –n. the process of bringing someone (who is sick, injured or has a problem) back to health
retain –v. to keep