HSE
Fragment of a discussion from Comments:Man charged over motorway bridge collapse in Kent, England
Come to think, it does strike an odd note, for me anyway, that HE is waiting for the result of the police investigation before deciding whether to do their own. I could maybe see them having some administrative reason for wanting the police conclusions to start them out on a right footing, but, yeah, it's hard to see how one could reasonably not ask careful questions about the thing. The sheer scope of what could have happened is appalling.