The Royal College of Pathologists provide advice on careers in pathology in the UK here and in (forensic) histopathology here, with a link to the national applications process here. The new forensic histopathology training route curriculum is available here.
Additional information regarding training opportunities in the UK histopathology training schools is available, detailing where those training schools are, and the facilities etc that they offer the prospective applicant.
There are currently training places in forensic pathology at:
In the future there may be additional training places in Cardiff (Wales).
Information about the future availablility of posts at these locations may be obtained from the respective departments or the local post-graduate Deaneries.