There was indeed a POW camp at Watnall - not sure why it isn't listed on the map in The Guardian article. And yes it probably is strange that it was near a plotting station. German soldiers were imprisoned there and they were given a certain amount of freedom to leave the camp. Some stayed in the area after the war ended and one married a lady at the top of my street. They settled in Nuthall. All this is courtesy of my mother who lived on Holly Road, Watnall. I'll try and get the exact location and re-post.
