I agree with what Chris has said above, and I know he was not advocating taking photos in a court. However, as he has mentioned Courts and although people can take camera phones in, I think it is worth clarifying that they must never use them to take photos in the court or of those involved in a trial etc whilst entering or leaving court.
It's contained in the Criminal Justice Ct 1925
41Prohibition on taking photographs in court.
(1)No person shall—
(a)take or attempt to take in any court any photograph, or with a view to publication make or attempt to make in any court any portrait or sketch, of any person, being a judge of the court or a juror or a witness in or a party to any proceedings before the court, whether civil or criminal; or
(b)publish any photograph, portrait or sketch taken or made in contravention of the foregoing provisions of this section or any reproduction thereof;
and if any person acts in contravention of this section he shall, on summary conviction, be liable in respect of each offence to a fine not exceeding fifty pounds.
(2)For the purposes of this section—
(a)the expression “court” means any court of justice, including the court of a coroner:
F1, registrar, magistrate, justice and coroner:
(c)a photograph, portrait or sketch shall be deemed to be a photograph, portrait or sketch taken or made in court if it is taken or made in the court–room or in the building or in the precincts of the building in which the court is held, or if it is a photograph, portrait or sketch taken or made of the person while he is entering or leaving the court–room or any such building or precincts as aforesaid.