if there was no sign of life in the house why dident the raid time go in there why did they wait outside.
Because of Jeremy:
"Having walked to the house from the lane there was further conversation. The appellant told the police that Sheila Caffell could use a gun. He said they had gone target shooting together and she had used all the guns in the house before. In the light of what they were told the uniformed officers requested armed assistance before any attempt to search the house was made. The appellant dictated a list of the firearms kept at the house. He told the police that he had loaded the .22 automatic rifle the previous night because he thought he had heard rabbits outside. He said he had left the gun on the kitchen table with a full magazine and a box of ammunition nearby. Those who saw the appellant at the scene at that time described him as remarkably calm. At some stage during their conversations that morning PC Myall and the appellant spoke about motor cars. The appellant said that the Osea Road Caravan Site company, "would be able to stand him a Porsche" car at some point during the year."
Jeremy intentionally scared them with lies about her weapon proficiency and how well armed she was.
Some armed police arrived at 5 but the majority did not arrive until 7AM
They used a megaphone around 5:20 to try to negotiate assuming it could be a hostage situation but received no response. They periodically continued with calls to the house from the megaphone but never got a response.
They didn't want to put officers or potentially hostages in danger so wanted to wait to enter until it was totally light so they could see inside the rooms as they went room to room. They also wanted enough officers to be able to cover all sides of the house so a potential gunman could not escape.
In the US all officers are armed so every cop on the scene could have protected the outside perimeter but not so with the UK police present.