Once you have determined the specific human rights norms affected by the issue you wish to complain about, it will be possible to identify one or several relevant international complaints bodies. In the event that several bodies have jurisdiction over the human rights norms that you want to complain about, only one institution may be chosen. It is not possible to bring the same case before more than one mechanism at a time. The choice of the most suitable mechanism in a given case will depend on several factors. There may be some differences in the substantive human rights norms in different treaties or there may be different types of remedies. Some procedures can be more complicated and lengthy. It may therefore be necessary to consult with professional lawyers or people with knowledge of human rights before making a final decision on the choice of mechanism.