 Substance abusing, engaging in sex activities or work, thieving, bullying, creating public nuisances and bear risk in personal security are the common problems that drifters facing.Besides, the crime rate of YNDs drifters is higher than that of general teenagers.The government has extended the service hours and service focus of 18 Integrated Children and Youth Services Centers in 18 districts to provide overnight outreaching service and satisfy the needs of YNDs from September 2001 onwards.