Various countries recognize some form of due process under customary international law.

The right to truth is an emerging principle in customary international law.

There are several different kinds of customary international laws recognized by states.

At the same time, all countries take part in forming customary international law by their practices and decisions.

Unlike a treaty agreement, customary international law is usually not written.

Its minimum standards are generally accepted throughout the world as customary international law.

The court therefore held that the right to be free from torture had become a principle of customary international law.

Secondly, it could be interpreted to include rules of customary international law.

Customary international law can be overruled, however, by a treaty.

The court, interpreting customary international law, determined that there was no jurisdiction.

For this reason, much customary international law has been agreed to formally by treaties between nations.

This prevents the creation of customary international law and allows China to block any action.

Customary international law applies to every country, regardless of whether they have formally agreed to it.

Today, it is part of customary international law.

They argued that the use of atomic weapons violated both conventional and customary international law.

Customary international law is an important source of international environmental law.

While the convention has not yet taken effect, China could argue that the provisions simply reflect existing customary international law.

Customary international law also has something to say about protection of the environment during times of armed conflict and military activities.

He cited "many legal difficulties," including "Israel's obligations according to the rules of customary international law."

However, it is uncertain as to what extent the Convention codifies customary international law.

Where the practice is less developed, the treaty provision may not be enough to crystallise the rule as part of customary international law.

Also, even if there was a customary international law rule against death by hanging, domestic statutes would prevail in the event of conflict.

It has been argued that there is a right to receive humanitarian assistance in disaster situations under customary international law.

Since the convention's entry into force, this absolute prohibition has become accepted as a principle of customary international law.

Having set forth the relevant standard, the court evaluated whether Pfizer did in fact violate customary international law.