Agency capture is the defect whereby government agencies established to regulate industries end up being influenced and controlled by the companies the agencies were supposed to regulate.
The primary reason for this "capture" of the agencies is because the companies offer better jobs to a few of the agency workers. These leads the agency workers to strive to make the companies happy in the dream of later gaining better jobs for themselves by working for the industry.
One example of a government agency captured by industry is the Food and Drug Administration.