Places of short-Term Deprivation of Liberty orders of officers of the law during the arrest. It is also indicated that any extraordinary measures must be short-term, and applied only for so long as is strictly necessary. The LECRIM sets out the principles covering exceptional cases and proportionality. These are listed in greater detail in rules 7 and 9 of SES Instruction 12/2007. These rules indicate that handcuffs in particular should be included among the extraordinary measures envisaged in the said article of the LECRIM, and indicate a number of precautions for ensuring that they are used appropriately in each individual case. However, in the course of the inspections carried out it was observed that detainees were handcuffed on entering and leaving holding areas. The CNP has other methods of restraint at its disposal, some of which may be used in situations of disobedience, violence or attempted escape. No such incidents were observed during the inspection visits carried out or in the recordings viewed. Nor were complaints received from the detainees interviewed on grounds of excessive or improper use of such measures. 65. The bearing of firearms in holding areas is another point of concern. It was For the sake of safety, observed that there were no consistent guidelines in place in this regard, and firearms should not be that common practice varied according to the criteria of those in charge of each worn in holding areas establishment. In most establishments officers either do not wear their regulation handgun or wear it with the magazine removed. Indeed, cases were observed in which both these situations occurred in the same facility, with the choice apparently left up to each officer. Inconsistencies in criteria were found within the area covered by a single headquarters, e.g. Asturias: in the headquarters building itself in Oviedo and in the district police station in Gijon firearms are not carried in the holding areas, but in the station in Aviles they are carried without the magazine. The same goes for the Western Andalusia Police Headquarters in Seville, where both situations occur at the same facility. At the station in Cadiz firearms are worn without the magazine, but in that of Cordoba they are not worn. Finally, there are a few establishments where the wearing of loaded firearms in the holding areas was observed, e.g. in the Police Headquarters for the Basque Country in Vitoria, the police station at Malaga airport and the Central Registry of Detainees in Madrid. For the sake of the safety of detainees and officers alike, firearms should not be worn in holding areas, and instructions should be issued accordingly. 66. It was observed that custodial officers did not always wear their identification A system must be set in numbers in plain sight. This situation was detected, among other establishments, place to ensure compliance at the district police stations in Aviles and Gijon (Asturias), Cartagena (Murcia), Ibiza and Playa de Palma (Balearic Islands) and Valladolid, the police headquarters for Aragon (in Zaragoza), Asturias (in Oviedo) and the Canary Islands (in Las with the duty of custodial officers to identify themselves at all times Palmas de Gran Canaria), and the Central Registry of Detainees in Madrid. This is a breach of SES Instruction 13/2007 concerning the use of personal identification THE OMBUDSMAN OF SPAIN 55