All officers at soc incl the police surgeon were signed up to murder/suicide. DS Jones was the only early dissenter but he was never a rising star. He retired at DS rank.
First respondents arrived circa 4 am. They then had to call firearms and get authorisation for such an operation and wait until all these people arrived. Upon arrival they sought JB's input re the layout of the farmhouse and assigned positions to firearms officers. In between this they attempted to make contact with the farmhouse via a loud jailer. All these things take time.
Holly, Inspectors spend more time running their team than working on the frontline. They delegate, but don’t do the nitty gritty hands-on work. So in a way their detective skills may not be as sharp as the detective sergeants who actually attend scene crimes and interview suspects,
Inspectors plan, manage and monitor complex front line and/or specialist operational policing (even arranging traffic operations when marches are taking place!) and also make informed deployment decisions to ensure best use of available resources
They’re more desk bound than frontline, and their job is to “police the police”. Being an Inspector doesn’t mean they have better detective skills.