No interactions present.
Looks slightly odd for this species but can't think its anything else.
This looks very like the illustration of the four spotted chaser in "Leicestershire Dragonflies" by Steve Grover & Helen Ikin and it has all the identifying features.
Ok thank you very much for identifying this for me. I am no good at invertibrates. :)
Lat/Lng: 52.2, -0.3
OS grid ref: TL1761