The information provided below is based on public security research, police reports and social science surveys. The purpose is to help everyone understand and prevent such illegal behavior, but it is not to encourage or guide any illegal activities. It should be emphasized that different cities, different time periods and specific situations may vary. The following situations are just some common characteristics that are often reported or observed: 1. Hidden public spaces • For example, in remote corners of large parks, far away parking lots or night areas with less traffic. These places are often not obvious and can use the surrounding environment to avoid surveillance or passers-by. 2. Buildings or places with weak control • Some abandoned or unused buildings, warehouses, basements, and community vacant lots with inadequate property management are easily chosen by criminals as trading locations because they are relatively hidden and lack effective surveillance and patrols. 3. Around commercial places that seem ordinary but are easy to conceal their identities • For example, public areas near some 24-hour coffee shops, convenience stores, gas stations or small restaurants. These places are not usually the gathering places for illegal activities, but they may be used for short-term "transit" transactions in inconspicuous corners outside stores, parking areas or quiet alleys nearby. 4. Temporary safe havens around transportation hubs • Subway entrances, bus stops or the periphery of train stations, especially in the dead of night, some areas have large flow of people and complex environments, and some criminals may use the crowds to cover and complete quick transactions and evacuate quickly. It should be noted that drug dealers often follow the principle of "concealment, speed, and easy dispersion" when choosing locations, and they will also constantly adjust their strategies based on local police patrols, surveillance coverage and residents' feedback. Social management departments and law enforcement agencies usually reduce the risk of illegal activities in these areas by strengthening patrols, installing surveillance and other measures. Finally, I remind you again: the above information is only for everyone to understand the characteristics of criminal behavior and improve prevention awareness, and should not be used for any illegal activities. If you find any abnormal situation or suspicious behavior, it is recommended to contact the local law enforcement department in time to jointly maintain community safety.