My son is a copper, Sergeant, and his job is a first responder at N B C incidents, his girlfriend is a SOCO and they were both at the Grenfell Tower as soon as they were allowed access by the Fire Brigade so that could begin their investigation. The assessment of the ashes was not a job for the faint-hearted and not one many would want to do.
The thing that, and I quote, "stuck in the craws" of both these officers was the almost instant denial of responsibility from everyone connected with the maintenance and refurbisment of the building. It was a hectic game of pass-the-buck and, it appears, this remains the case.