UK employment and criminal law advice needed for research

I am currently writing a thriller film and to make it realistic, I would need some advice on legal issues that come up in the story line.
Firstly, concerning employment: If an inoperable brain tumor is detected in a 40 year old university professor, how will this issue be dealt with? Is he allowed a premature pension?
Secondly, if a last will of a person says his surviving spouse can do whatever she pleases with his body, does that acquit her of any crime in the realms of desecration of a corpse?
Asked Sep 28, 2014

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