Frameup

 
In the United States criminal law, a frame-up (frameup) or setup is the act of framing someone, that is, providing false evidence or false testimony in order to falsely prove someone guilty of a crime. While incriminating those who are innocent might be done out of sheer malice, framing is primarily used as a distraction.
Generally, the person who is framing someone else is the actual perpetrator of the crime. In other cases it is an attempt by law enforcement to get around due process. Motives include getting rid of political dissidents or "correcting" what they see as the court's mistake. Some lawbreakers will try to claim they were framed as a defense strategy.
Frameups in labor disputes sometimes swing public opinion one way or the other. In Massachusetts, during the 1912 Lawrence Textile Strike, police acting on a tip discovered dynamite and blamed it on the union. National media echoed an anti-union message. Later, the police revealed that the dynamite had been wrapped in a magazine addressed to the son of the former mayor. The man had received an unexplained payment from the largest of the employers. Exposed, the plot swung public sympathy to the union.
Frameups often use conspiracy theories to hide the true crimes of the accused. Individuals use these conspiracy theory to hide actions of others that have been turned in. For example, there were frameup accusations in the anthrax incident involving the United States Postal Service.
A frameup where a police officer shoots an unarmed suspect and then places a weapon near the body is a form of police misconduct known as a "throw down". This is used to justify the shooting by making it appear that the officer fired in self-defence or to defend other bystanders.
In British usage, to frame, or stitch up, is to maliciously or dishonestly incriminate someone or set them up, in the sense trap or ensnare.