The preceding issues refer to the pharmacological-type notions that encourage State intervention. But there are some strictly pharmaceutical aspects that also generate areas where State intervention is essential: a product may be surrounded by the best pharmacological properties (effectiveness, safety, etc.), but if the product's manufacturing process does not have all the required guarantees, its use could be lethal.
For a long time our countries have directed their efforts towards the control of the finished product. A modern concept of quality assurance is clearly oriented to the building of quality and not to its «control» in the final product, so that the emphasis is put on Good Manufacturing Practices guidelines.
Once again, the State exerts its authority to create a situation that includes quality assurance: the production process is regulated in such a way that all the probabilities aim towards a totally reliable final product. This is the best protection the State can offer to the country's population. Sample testing is only intended to serve as an instrument to validate something that is supposed to be controlled «at source».