For anyone unfamiliar with this delightful peice of new UK law:http://en.wikipedia.org/wiki/Control_order
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A control order is an order made by the Home Secretary of the United Kingdom to restrict an individual's liberty for the purpose of "protecting members of the public from a risk of terrorism". Its definition and power were provided by Parliament in the Prevention of Terrorism Act 2005. Control orders were also included in the Australian Anti-Terrorism Act 2005.
The control orders section of the Prevention of Terrorism Act provides for extremely limited rights of appeal and the absence of double jeopardy restrictions (i.e if a recipient managed to win an appeal in the Court of Appeal or other tribunal - the home office could simply re-apply the same order again). This has led to many court rulings highly critical of the orders. 
1.1 List of restrictions
3 Timeline of ministerial statements and legal challenges
4 See also
6 External links
The list of possible restrictions and obligations that can be included in a control order is long. It can place restrictions on what the person can use or possess, his place of work, place of residence, whom he speaks to, and where he can travel. Furthermore, the person can be ordered to surrender his passport, let the police visit his home at any time, report to officials at a specific time and place, and allow himself to be electronically tagged so his movements can be tracked.
In short, it provides for a graduated scale of technological "prisons without bars" that are intended to work within the European Convention on Human Rights.
When the control order crosses the line and "deprives liberty", rather than "restricts liberty", it is called a derogating control order because it infringes Article 5 of the ECHR. This can only happen if there is a derogation according to Article 15, and the Home Secretary must apply to a court for the authority. Derogation is only allowed when there is a "war or other public emergency threatening the life of the nation".
The ECHR states that the government cannot deprive any person of their liberty without due process of law. This process must include informing the person of the accusation against him, giving him access to legal assistance to prepare his defence, and giving him the right to have his case heard and decided in public before a competent court.
The government has claimed that the terrorist allegations against certain individuals are of such a nature and from such sources that they cannot be prosecuted "because that would mean revealing sensitive and dangerous intelligence". 
 List of restrictions
Possession and/or use of specified objects and substances.
Use of specified services and/or facilities.
Certain occupations and employment.
Carrying out specified activities.
Restriction on association and communications with specified people, or people in general.
Restriction of place of residence, and visitors to the residence.
Movements at certain times of the day, or to certain places.
Passport must be surrendered.
A requirement to admit specified persons to certain premises.
A requirement to allow specified persons to confiscate and/or scientifically examine any object on premises owned by the subject.
A requirement to allow electronic surveillance to be carried out and photographs taken.
Any other restrictions whatsoever for up to 24hrs, when it is deemed necessary