The bottom line is that all convicted suspects have been put in the frame. That is what police and investigators are trained to do. They have a person they suspect of having committed the crime, and they set out to build a volume of evidence against that person, or those people, and ignore anything that might tend to show a suspect as being innocent. There is nothing wrong with putting suspects in the frame, until dishonest intentions come into play, not just by investigating police officers, but it may also involve dishonest members of the public who are just out to cause mischief for somebody, who they dislike, or have a grudge to grind with somebody. Experts can be unknowingly drawn into this circle of lies by examining what is put before them - if the evidence out before them has been dishonestly presented, any findings through examination by an expert would on the face of it be true, but part of a conspiracy against a targeted suspect. There does not have to be a direct lunk between every party in a conspiracy, a conspiracy can involve people who do not know one another who never had any direct dealings with someone else in the conspiracy. All you need are at least two people or more, who know one another, or who had direct dealings in an instant case with each other, and involvement with or dealings with someone else in the same matter, who in turn had no dealings with others in the same matter, and all these people, be they police officers, members of the publuc!, experts, etc...
So, that is how a conspiracy can come about, everybody involved does not have to sit around a table and talk about how they can dishonestly do this or that...
