Some important questions to ask before starting your research:
· Is it a bilateral or multilateral treaty?
· Who are the parties to the treaty?
· Is the treaty in force?
· Has the treaty been signed, ratified, repudiated, or modified?
· Are there reservations to the treaty?
· Is there an international organization that oversees or administers international law in the subject area of the treaty?
(Source: An Introduction to Public International Law Research By Vicenç Feliú July 2010 NYU Globalex)