Broadcasting authorities are often public corporations.
The authorities put a price on the outlaw's head.
The police never caught him in any criminal activity but he eventually fell foul of the tax authorities.
The authorities believe there is a mole at the Treasury.
The airport authorities have promised to review their security measurements.
The tax authorities averaged his profit out at 3000 a year over 5 years.
The rapid spread of the disease is alarming the medical authorities.
The authorities finally disclosed the truth to the press.