I'm curious to know how you can 'restrict' an investigation of this nature. Regardless of whether the remit was to investigate the 'abduction' or the 'disappearance' of Madeleine - the fact is that all the available evidence, witness statements, witnesses themselves and all the other information which was going to be examined by SY remain exactly the same for BOTH remits. So how does this 'restriction' actually work in practice?
I can answer exactly how that works in practice from my personal experience of representing Les Balkwell, father of Lee Balkwell, over the past 9 years. Lee was killed on 18 July 2002 and Essex Police immediately declared that this was no more than 'tragic accident'. Les has been challenging that assessment for over 13 years.
The day after Les first set up his website - 6 July 2006 - in which he made 22 specific allegations of misconduct against several senior police officers, the then Head of Professional Standards told him that he was going to get a new, independent Senior Investigating Officer, brought in specially from the Met, to undertake a 'compete investigative review of everything on the case'. Something like 'drawing everything back to zero'.
Only years later was he informed that the SIO - DCS Keith Garnish - had been specifically instructed by his superiors only to investigate the 22 allegations made by Les, and nothing more.
Then again, in 2010, as a result of the Independent Police Complaints Commission agreeing with Les that the original investigation was 'seriously flawed', Les was offered a 'full re-investigation' by Kent Police. However, only in late 2013 did Les discover that Essex Police had limited the remit in a number of ways - including 'not to investigate any issue that arose after the time of death on 18 July 2002'. This had the effect of ruling out all manner of lines of enquiry, such as a credible allegation that two police officers had tampered with the lorry after the date of death, to support the accident scenario.
Senior Investigating Officers and all their staff MUST obey their remit, which can however be altered from above. Moreover,
it is potentially a serious disciplinary offence for any officer to step outside his/her remit.
We have no evidence whatsoever that the remit of Operation Grange was altered after they eventually announced on 4 January 2012 what it was.