7. Establishments visited by the National Preventive Mechanism in 2010   Table 1 below contains a review of all establishments visited by the National Preventive Mechanism, including the structure and number of visits between 2008 and 2010. It needs to be noted, though, that the total of visits in 2008 and 2009 may be different from the figures included in previous annual reports on the National Preventive Mechanism (of 2008 and of 2009). The abovementioned differences result from changes in the statistical presentation of some visits: - since 2010 NPM statistics have had a separate category of: juvenile detention centres and juvenile shelters operating jointly (under the same address and with the same administration). In 2008 and 2009, visits to such institutions were treated as two separate categories (juvenile detention centre, juvenile shelter); - since 2010 a visit to a penitentiary establishment and its separate external ward have been treated as one. In 2008 and 2009, as in the previous case, such visits were recorded in two separate categories. For the needs of this publication, the number of establishments in Table 1 in 2008 and 2009 has been unified, taking into account the abovementioned changes. However, two categories of establishments not visited by NPM in 2010 are not included therein, namely, Military Custodial Establishment (1 visit in 2008) and Military Disciplinary Detention Centres (2008 – 2 visits, 2009 – 1 visit).