enforcement proceeding, Police executes orders of a family court”.) In the assessment of National Preventive Mechanism, the grounds to place a juvenile in a Police emergency centre for children are not reflected in the principles of law. On the other hand, there is a question of legitimacy of placement in a centre of a juvenile whose behaviour does not constitute grounds stipulated in Article 40 § 1 of the Act on j.d.p. In one of the inspected facilities (Police Emergency Centre for Children in Legnica), the visiting persons were concerned with the case of a juvenile placed in a centre for the time of court proceedings. A detailed case analysis demonstrated that it was not his first stay in the centre. Each time, the placement was based on a decision of the Regional Court. As result, in 2010 the juvenile was placed in the Police Emergency Centre for Children, for the above-mentioned reasons, 6 times, and his stay lasted 7 days on average. The President of Regional Court in Legnica answered that it was a unique case resulting from the criminal court decision, made in relation to criminal proceedings carried out against the juvenile. The case of the juvenile was extraordinary as he was accused of attempted murder. During his stay in the Juvenile Detention Centre in X he attempted to murder one of his tutor. In result, he got an invalid sentence of 10-yearimprisonment. During the trial, from the adjudication date, the juvenile was placed in the Juvenile Shelter in Y (situated about 500km from Legnica.) For that reason, the Regional Court in Legnica was forced to place the juvenile in the Police Emergency Centre for Children in Legnica for a few days, as it was impossible to bring the juvenile each time directly from Juvenile Shelter Y. The court decided to place the juvenile in the Police Emergency Centre for Children in Legnica with view to efficient criminal proceedings and to make it possible for the juvenile to participate in the main trial. Undisturbed course of the criminal proceedings serves the interest of the harmed tutor, who became disabled and permanently incapable of work. With view to all the above examples and on the basis on international standards, the National Preventive Mechanism stresses each time that police emergency centres for children are not suitable for longer stays of juvenile for many reasons e.g. as they are not subject to compulsory education during they stay. In relation to that, all possible activities should be taken to place a juvenile in this kind of facilities for the shortest possible period of time. b) Third person notification about detention The Beijing Rules Rule 10.1 Upon the apprehension of a juvenile, her or his parents or guardian shall be immediately notified of such apprehension, and, where such immediate notification is not possible, the parents or guardian shall be notified within the shortest possible time thereafter. UN General Assembly Resolution 43/173 of 9 December 1988. Body of Principles for the Protection of All Persons under Any Form of Detention or Imprisonment. Principle 16.1 Promptly after arrest and after each transfer from one place of detention or imprisonment to another, a detained or imprisoned person shall be entitled to notify or to require the competent authority to notify members of his family or other appropriate persons of his choice of his arrest, detention or imprisonment or of the transfer and of the place where he is kept in custody.