Defining and Registering Criminal Offences and Measures - Oapen

Prison Population 271
that they are held in prisons in connection with an offence while the administrative
authorities make a decision about their residence status, or that the country
considers that each person deprived of freedom should be included in their penal
statistics.
As a conclusion, any questionnaire on prison population should include subsidiary
questions about the inclusion or exclusion of the categories mentioned
above and, whenever possible, about the number of persons that fall under each
of these categories. Thus, it would be possible to adjust the total prison population
of the different countries, by adding or subtracting these categories, in order
to make comparisons possible.
The evaluation of the trial questionnaire, however, made clear that data for the
full breakdown of the different categories were not available for many countries.
But to understand the total, the respective definitional table on what is included in
prison was of course kept. Results for the different countries are listed in table
N.1.