However, cases have been noted of firmly entrenched, non-written legal principles, which seem to provide adequate guarantees.
The Philharmonic said it had decided to cancel the European tour because of the Spanish festival's failure, after long negotiations, to provide adequate financial guarantees.
Henry was objecting to the Constitution's lack of adequate guarantees of civil liberties.
To her social position and material prosperity seem to be an adequate guarantee for a happy future.
Others, like India and Cambodia, have not provided what the government believes is an adequate guarantee that workers will be safe from abuse.
There are cases in which the current agreements have not to date contained adequate guarantees.
The thinking behind the Commission's proposal was that only public authorities can deliver adequate guarantees on effectiveness and confidentiality.
We have to conclude that the existing agreements to prevent nuclear material from being mislaid or misappropriated do not offer adequate guarantees.
Full compliance with European and national legislation on data protection should also be taken into account and adequate procedural guarantees provided.
Notwithstanding this, an agreement without adequate guarantees would have no chance of standing up in the European Court of Justice.