Hi All, I'm currently working on a standalone YA fantasy book, set in present day England. Despite it being fantasy, I want any content which takes place in the 'real world' to be as accurate and believable as possible. In the second half of the book, the main character (Leigh) is suspected of having killed three people: a husband and wife, and an elderly woman. The elderly woman (Connie) was a friend of Leigh, who was killed earlier in the book when she and Leigh were attacked. Connie left her house to another character (Alex), and Leigh is currently residing in Connie's home, with Alex's permission. The husband and wife were part of the group responsible for Connie's death, and when they try to attack Leigh, he kills them. Now here is where I have trouble, as I know very little about police procedure regarding murder investigations. The idea I have, albeit very rough at the moment, is that the officer in charge of the investigation is also part of the group responsible for Connie's death, and is using the investigation to try and distract Leigh from the antagonist’s goals. Most of the others are just ordinary police officers trying to do their jobs. There is little to no real evidence to show Leigh had a part in the deaths, so the lead officer is trying to plant evidence, and orders three officers (one of whom is also involved in the plot to frame Leigh) to investigate the house without a warrant. The two other officers reluctantly do so, but are caught by Leigh, who convinces them of the truth. Firstly, I'll ask if anyone knows of any reliable websites/books were I might be able to get the information I need. More specifically, I need to know:- -How many officers would typically be involved in this type of investigation? -What methods would the officers use to investigate the deaths? -How much/what sort of evidence would the officers require before they could get a search/arrest warrant? Thank You in advance for any help. Matt.