@This is why we need a constitution in the UK
I agree, but only if it is written *without* the "weasel clauses" that allow the Government to effectively negate the protections given.
Eg Article 8 of the European Convention on Human Rights says:
1. Everyone has the right to respect for his private and family life, his home and his correspondence.
But it then goes on to say:
2. There shall be no interference by a public authority with the exercise of this right except such as is in accordance with the law and is necessary in a democratic society in the interests of national security, public safety or the economic well-being of the country, for the prevention of disorder or crime, for the protection of health or morals, or for the protection of the rights and freedoms of others.
Those exceptions pretty much let the Government say "well, we need to do this for (insert spurious but plausible reason here)" and thus trample all over the rights it's trying to protect.