jack,

I am interested in the Vietnam Conflict (both under French and U.S. prosecution), Malay Emergency, Northern Ireland, French Algeria.
I am sure somewhere there are published official figures for detention in Northern Ireland. It maybe difficult to separate terror-related from "ordinary decent crime", except when there was internment. A starting point is:http://en.wikipedia.org/wiki/Operation_Demetriusand http://cain.ulst.ac.uk/index.html

Figures for Kenya maybe easier to get than Malaya IMHO as there was a book a few years ago on the mistreatment in the internment camps, written by an American and the title eludes me.