turned who are in custody can contact the office. officers at any time. All detention cells of the Federal Police Stations at Hamburg Airport and Hamburg Main Station, as well as Hamburg Anti-Crime Police Station and Hamburg-Altona Federal Police Station, should be equipped with a fire protection alarm system in order to enhance the protection of the individuals in custody should a fire break out. The Federal Agency has already stressed in connection with the visit to the Federal Police Station at Berlin-Schönefeld Airport that it must be ensured that returnees are provided with food, particularly when they have a longer journey there. The Hamburg Airport Federal Police Station is hence recommended to specifically sensitise the officers of the Land authorities with regard to this problem in future in order to be able to better identify the individuals concerned. The Federal Agency recommends fitting all detention cells of the Federal Police Stations visited in Hamburg with lighting that is dimmable at night, as well as providing the Federal Police Station in Hamburg Main Station and in the Federal Police Station at Hamburg-Altona with suitable washable mattresses. The Federal Agency particularly welcomes the fact that detention cells of Hamburg Airport Federal Police Station have daylight. However, it recommends to implement the construction changes needed for suicide prevention (replacement of the window bars) where possible such that daylight is not considerably reduced. The window bars in the detention cells of the Federal Anti-Crime Police Station in Hamburg should also be replaced when this is done. Wide-angel spy-holes are also used in the toilet doors in the Federal Police facilities visited in Hamburg (for a legal evaluation cf. page 24). Fire protection alarm systems have been installed in all the detention cells at the Federal Police Stations visited. Hamburg Federal Police asks the transferring forces of the Länder to ensure that returnees are already adequately fed before being returned. Moreover, it is also possible in individual cases for the Federal Police to first advance money, which is subsequently refunded by the immigration authorities. Despite all efforts, unsatisfactory individual cases did occur in which the Federal Police unfortunately had to manage to help with limited funds. The Federal Ministry of the Interior stated that the suggestion to install dimmable lighting was still being examined. The detention cells visited at Hamburg Main Station and in Hamburg-Altona were always fitted with washable mattresses, but their replacement – necessitated by the occasional destruction by aggressive inmates – could take some time. The replacement of window bars in the detention cells of Hamburg Airport Federal Police Station and of the Federal Anti-Crime Police Station in Hamburg was currently being examined by the competent construction office. The Federal Ministry of the Interior also considers the use of wide-angel spy-holes to be necessary to protect the individuals in custody. 28