Prince Charles is meeting ministers so he can pursue his own political interests, according to anti-monarchy group Republic.
The Prince of Wales has held private meetings with Cabinet ministers 36 times since the last general election.
Republic chief executive, Graham Smith, said the Prince of Wales was clearly choosing ministers to meet who are relevant to his own personal interests.
Mr Smith said the public needed to have a clear understanding over what the Prince's interests are, and whether those interests are impacting on public policy.
More top news
Fainting dogs, dancing grooms and an attacker who picked on the wrong girl all featured highly in our most-read stories of the year.
Some dogs have been at the Battersea Dogs and Cats Home for more than a year. Can you make their Christmas and give them a new home?
Selfless Donna Wood from Staffordshire has left her husband and children at home so she can help save lives in Sierra Leone.