Evening niknak - hows things?
Better from above;
I can only give you an idea from the NATS training perspective, and at the college very little was taught. I think during my Approach Radar course we only had one simulated "unauthorised infringement of controlled airspace", so it wasn't really something that any of us thought much about.
The real world however is a very different story....infringements are daily occurrences and happen for all sorts of reasons - unfamiliarity with the airspace, weather, lost, incorrect or no maps (following the GPS is a favourite - although what type of gps is questionable sometimes, especially when they are following roads!!!) and you just have to deal with them the best you can. There is no specific laid down training for dealing with the infringing aircraft (just get it out as expeditiously as possible!!!), but there are separation minima that you have to achieve with other aircraft that you may be working against said infringement, this can be found in the MATS pt 1 (cap493)
Hope that this helps
