Any crime starts with a plan that the criminals devise prior to doing the act. Upon executing the crime, they may eliminate any trace of evidences that can point to them. This scheme is usual. However, there are crimes that have been planned particularly to deviate the full act in order to set up a certain person who is not really the one who have done the act or crime. The reasons may be different and this can happen before or during the time that the crime is already being assessed in the court of trials.
A foul play gives a way for the real criminal to escape the verdict or the consequences of the crime that was done. Usually, this is devised easily by the criminal especially if they can influence the people who have direct involvement in the case – whether people involved on the act of crime itself or people involved in the resolution of the case on the justice system.
A foul play itself can become a means to just trap a person into a crime. If the person being accused has not enough means to defend himself, this can lead to him serving terms in the prison the crime he has not committed. This case may not be that easy, but with gathering of sufficient facts and evidences, there is always a way to win over the case of accusation. Having a lawyer helps in the resolution of the case. But to help out further, one can also do personal investigation. People records available online can be a great tool that one may use for this. One may start the investigation on the accuser. Aside from a personal background check, there are a lot more information that can get out of it that may lead to discovering the real score of what really happened in the crime leading to one's acquittal.