The decision by the captain of this aircraft and the one earlier in the week to keep the passengers on board are ludicrous.
If someone is suggesting that they were kept on board at the behest of the local police chief, they are mistaken. The decision in such matters rest solely with the aircraft commander. He is the one that will bear the brunt if things go wrong. If that were to happen the local police chief would be cleared as the course of action would have only been a suggestion by him. He does not have the authority to override the captain. The commander's authority to make and execute such decisions is backed up by international law.