POLICE have this morning moved onto the site of Osbaston House in Maesbrook, near Oswestry.
The search for three members of the Foster family continues and they remain unaccounted for. An appeal for any information concerning their whereabouts is still in place.
It is not known if the family, Chris Foster, wife Jill and teenage daughter Kirstie, a pupil at Ellesmere College, were in the property when the fire broke out in the early hours of Tues 26 August.
Supt Gary Higgins said: "Officers have completed a search of the outbuildings and are now in the process of removing vehicles from the site. We have completed a cursory search of the annexe part of the main building which is relatively intact following the fire.
"We'll enter the main part of the house today and forensic specialists will begin the lengthy, painstaking process of sifting and examining all the contents. There is extensive debris at the site and it will take some days, possibly several weeks, to complete this part of the investigation. We will be seeking to build up a picture of the circumstances leading up to the fire."
Every possible scenario for what happened is being considered and police are following up all possible lines of enquiry.
Supt Higgins added: "The horses found dead at the scene have been examined and post mortems on them were completed yesterday. We are still awaiting the results of those examinations. The bodies of three dogs were also found close to the horses."
A large horse box which was parked close to the gates of the property has been removed from the site for forensic examination. Police dogs also helped to search the site earlier this week.
Profiles are being developed on all three family members to assist the enquiry. The fire, which is being treated as arson, broke out at around 4am on Tuesday (26 Aug), quickly engulfing the house, stable block and garage area.
Supt Higgins added: "I’m aware there is a lot of speculation concerning this incident and we are anxious to clarify the exact circumstances as soon as possible.
"However, I stress this will be a lengthy process and we would ask for the support and cooperation of the local community while we continue to work at the scene. Nearly 100 officers and support staff are continuing to work round the clock and more information will be released publicly as it becomes available."
Police are working closely with Shropshire Fire and Rescue and would ask that anyone who has information which could assist the enquiry calls West Mercia Constabulary on 08457 444888 and ask for the incident room at Shrewsbury or Crimestoppers 0800 555111.
Brendan Wignall, headmaster at Ellesmere College, said this morning: "We are very concerned for the safety of Kirstie and her family, who are in our thoughts and prayers. Kirstie is a charming, popular and hard-working girl with many friends, all of whom are hoping that she and her family will be found safe and well."