Detective Rivera worked as an undercover narcotics agent for many years. After several months of investigation, it was discovered that Detective Rivera was taking a lot of bribes from the individuals who smuggled narcotics. In this scenario, Rivera's action for personal gain is an example of .

corruption

Explanation:The act of Detective Rivera collecting bribe for personal gain from individual who smuggled narcotics is a form of corruption.

Corruption is any unlawful act seeking to acquire possessions through illegal means.bribery,fraud,abuse of power, embezzlement falls under this categories.

i heard they are taking it off i hope this isn't true but otherwise if it doesn't get taken off it will probably be in early december or early january of 2018-2019

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.