34. This chapter covers inspection visits to places of deprivation of liberty where Visits to places of the maximum time for which persons are held is counted in days. The most deprivation of liberty common cases of such deprivation of liberty the holding of persons for identification under the Public General Act for Public Safety, criminal arrests, where persons are held for periods measured in days detentions under legislation governing foreign nationals, military arrests for minor offences, holding at border posts on denial of entry or while requests for asylum are processed and the confinement of stowaways. Places of detention and other establishments at border posts were visited in 2010. 35. In line with the objectives set for the Ombudsman’s activities as the NPM, The 173 establishments inspection visits were made to 173 places of short-term deprivation of liberty visited housed 60 % of all run by various police forces and organisations. The total number of detentions resulting in persons being held in custody in the whole of Spain in 2010 was the detainees held in cells in 2010 over 470,000. When selecting which places to visit in this forest here of activity, special emphasis was given to visiting those promises with the highest throughput of detainees: in all, the places visited housed 60% of all persons detained and held in cells. 36. The rules governing deprivation of liberty in the Constitution can be found Art. 17 of the Constitution in Article 17, which recognizes the fundamental right of liberty and establishes recognises the the principle of legality in dealing with cases and forms of deprivation of liberty. Detention is envisaged as a precautionary measure that must be administered on the basis of the minimum essential duration, lasting no more than 72 hours, fundamental right to liberty and establishes the principle of legality in dealing with cases and by which time detainees must be released or brought before the courts. In this forms of deprivation of context, the first issue to be considered is criminal arrest, as regulated by Articles liberty, as implemented by 489-501 and 520-527 of the LECRIM. Article 520.2 of the LECRIM is of particular importance, since it establishes the core rights of all detainees, in implementation of paragraph 3 of the aforesaid Article 17 of the Constitution. Detainees must be informed of these core rights immediately upon their detention, in line with Article 9.2. of the International Covenant on Civil and Political Rights, and with principles 10-13 and 17 of the BPP. Police forces are Art. 502.2 of the LECRIM Detention is seen as a precautionary measure that must be applied on the basis of the minimum essential duration, lasting no more than 72 hours issued with forms that contain the relevant information in various languages — it has been observed at various forces that these forms are available via their corporate intranet — which are presented to the detainee for his/her signature. If the detainee refuses to sign or is illiterate, a procedural note from the officer in charge is issued. 37. Spanish regulations establish that criminal liability may be applied to Juvenile detainees juveniles as from the age of 14. Particular requirements applicable to criminal must be released or arrests of juveniles are regulated in Art. 17 of the LORPM, which adjusts the procedures applied according to the age and degree of maturity of the juveniles involved. The arrest must be reported immediately to the parents, tutors or handed over to the public prosecutor within no more than 24 hours guardians of the juvenile, who must be informed of their right to appoint a lawyer, THE OMBUDSMAN OF SPAIN 43