Which of the following is categorized as a limited right in the ECtHR?

The right to liberty and security is categorized as a limited right under the European Convention on Human Rights as interpreted by the European Court of Human Rights (ECtHR). This classification arises because while individuals do have a right to liberty, this right is subject to certain restrictions outlined in the Convention.

For instance, Article 5 of the Convention provides specific grounds on which an individual's liberty can be lawfully restricted, such as through lawful detention after conviction, prevention of a person from committing a crime, or if they are deemed of unsound mind. These provisions make it clear that this right is not absolute and can be limited under certain conditions.

In contrast, the other rights mentioned, such as the right to life, prohibition of slavery, and the freedom of expression, have more absolute characteristics or fewer conditions under which they can be restricted, making the right to liberty and security distinctly characterized as a limited right within the framework of the ECtHR.