The document discusses a proposed drug testing scheme in Hong Kong secondary schools. It notes that drug use among those under 21 has increased 57% in the last four years. The government has spent $2 million researching the feasibility of such a scheme. There are concerns about labeling effects on schools and students. The scheme could also damage trust between students and teachers or parents. Setting up drug testing centers rather than school-based testing could help address these issues by providing a more confidential testing environment and limiting teacher workload. For the scheme to be effective at the societal level, it must consider factors like benefits to citizens, service quality, and social fairness, not just efficiency. The proposal is that the scheme should be expanded to all secondary schools after