Group III-Indicators of people potentially at risk. The indicators for determining enabling factors of the people potentially at risk were divided into three categories, including proportion of people potentially at risk and existing substance abuse risk places, substance abuse behaviors, and impact of substance abuse problems. The following indicators served as alarming signs for taking precaution on substance abuse problems pertaining to people potentially at risk in the area: 1) having people with substance abuse risk behaviors more than more than 1.75 per 1,000 population; and 3) having those who received the impacts of substance abuse problems not more than 1.37 per 1,000 population.