revision preference src: Whilst their advice is used in the decision making process by other government bodies, the majority do not actually have any executive power to make such decisions themselves. Hence, when they have more authority their value is seen to be higher. <SEP> tgt: Whilst their advice is used in the decision making process by other government bodies, the majority do not actually have any executive power to make such decisions themselves. When they have more authority their value is seen to be higher.