A household survey is already conducted in regular administrative districts; why is it necessary to conduct the Population and Housing Census?

1. The household survey conducted by the police is for the safety of the household and keep contact with the household regularly as well as to understand the recent state of community safety and hazard occasions.
2. The Population and Housing Census is chiefly intended to obtain statistical information regarding the basic characteristics of the resident population, household composition and housing usage as well as for decision-making purposes. Therefore, the census is different from the police household survey in terms of its purposes and uses.