LC's case is high profile to us, but i'm not so sure it was determined to be such by the DR LE

IMO, given who signs their cheques, they would be more interested in closing the case quickly and are maybe not used to peeps questioning their conclusions. We still don't know which is the lead agency in the investigation, and while we may receive the occasional snippet from DR LE, it is my FIRM BELIEF that LC's case is being investigated at a level beyond DR. I don't wish to instill false hope in that regard, but there are reasons I believe this. My sources don't tell me anything (lol), so my interpretation could be wrong.
I do not believe the whereabouts of the Chief Coroner on a given day would determine where an autopsy was conducted. However, maybe the Chief Coroner WAS called to Ottawa because of the case??? To the best of my understanding, the Chief Coroner is simply the chief administrator and I do not believe they physically become involved with the individual autopsies. They may assist LE and family in understanding the results, etc, but they perform more of an executive role and provide advice and expertise to other coroners under their supervision.
Given the nature of what I research, there are certain specifics I can't provide for personal security reasons. However this is my recollection / understanding of the process as it transpired in my son's case:
An Ontario coroner (other than the Chief Coroner) attended at the place of death and advised me of my son's death. An autopsy was performed the next day. Due to questionable circumstances, a Coroner's Warrant was issued by the Coroner's Office upon certain agencies the following day. I can't recall if I called him or vice versa, but I spoke with the Chief Coroner of Ontario (who happens to be in Toronto) to discuss various specifics. A Death Certificate was issued by the funeral home but was not dependent on receiving autopsy results. They do not automatically send out copies of the Autopsy Report, but the Chief Coroner advised me to address a letter of request to him, and he provided me a copy of the full Autopsy Report. The autopsy report was signed by a pathologist who conducted the autopsy. The Chief Coroner subsequently assisted me with understanding and clarification. The Chief Coroner conducted an "investigation" and ultimatedly decided that an "inquest" was not required.
HTH