Just a short note about "DI Ashleigh Smith" mentioned in Dr. Nicholas Hunt's postmortem report.
As far as I can trace no "Ashleigh" Smith was ever a member of Thames Valley Police.
I suspect that the individual concerned was, in July 2003, DI Ashley Smith.
DI Smith was later promoted to Superintendent, being a senior officer in Thames Valley Police's Professional Standards department in 2008. See here.
Other than his presence close to the scene where Dr. Kelly's body was found on 18th July 2003, I think we know nothing publicly of DI Smith's actions.
For completeness, I'll mention that Thames Valley Police also have a Police Constable Ashley Smith. At the risk of stating the obvious, PC Smith and Superintendent Smith are two different individuals.