Suppose there is a public institution (i.e. funded by the government using tax payers' money) in England that was set up through a Royal Charter. The institution has a Code of Conduct for a specific type of activity being carried out by this institution, as well as a second document that prescribes the Procedure for Investigation in case a violation of the Code of Conduct comes to light.
My question is: are these documents legally binding on this public institution? In other words, if powerful officials within this institution ignore this Code of Conduct and refuse to follow the prescribed Procedure for investigating any reported misconduct, can they be held to account by the law in England?
I have heard that in several other countries, an institution's own Code of Conduct automatically becomes legally binding on that institution. Is this the case in the UK too? If yes, which specific laws apply here?
If it is not legally binding, does it mean top officials in the institution can implement the Code of Conduct at their own will and fancy - penalising certain individuals when it suits them and looking the other way if that's what suits them?