If the Town Council has already detected previously the existence of determinate free houses through the systems made clear in the article 41.4 LDH, or through other mechanisms that have been able to settle, the article 41.5 LDH he fits out the communication in the Town Council of a listing of abnormally low consumptions of water, gas and electricity, under the established threshold, to the effects of checking out the situation of unemployment. The access to the property register and to the census of inhabitants can be considered fitted out and proportionate, in order to identify the owners of houses where nobody is evident registered. The Town Council addressing itself is not contrary to the regulations of data protection for the owner persons, with posteriority to the detection of the anomalous situation of the houses, to give them information of the foreseen measures.