housand prisoners and Great Britain had only 30 thousand prisoners and that was the lowest. After a decade, prisoners’ number in Britain remained almost the same while the number decreased in Australia, New Zealand and Canada. But this year the total number of prisoners increased in the US by 30 thousand and reached to 130 thousand. In 1950, the prisoners’ number increased in Britain and slightly decreased in Australia and New Zealand. On the other hand, the prisoner in Canada increased and got highest among the five countries and decreased in the US. A similar trend in terms of prisoner numbers in these countries could be observed after a decade. Finally, in 1980, the prisoners’ number in these countries increased except in Australia. The US had the highest number of prisoners in this year and Great Britain, Canada and New Zealand had more than 80 thousand prisoners in this year.

In summary, over the 50 years period, the crime and imprisonment number got worse in US and Britain while Australia, Canada and New Zealand did some progress. In 1980, Australia had the least number of prisoners which indicate their improvement in law and order.