An episode like this one, isn't likely to be shown on British TV these days - courtesy of some racist comments to be found in the dialogue.
Despite that, this is a great story. Leonard Rossiter gives the best performance as the tough, veteran soldier whose methods can only rub the private soldiers up the wrong way. He gladly ill treats the foreign locals and forever believes that the British army should rule over foreign countries. As usual, John Thaw's Sergeant Mann clashes against those who refuse to assist in his enquiries. Initially, he's investigating an allegation of a local being assaulted by some of the posted soldiers. Before long, Mann is investigating a murder.