R (SSHD) v MHRT, re MP (2004) EWHC 2194
Conditions attached to conditional discharge of restricted patients must not be so severe as to deprive the patient of his liberty (as opposed to merely restricting it). In this case the condition that the patient may not leave a hostel without escorts deprived him of his liberty. Re PH distinguished: the purpose of the restrictions (and the hope in PH that the need for them might diminish) was different.
Possible Bailii link (not there when last checked, but it might have appeared since 0700 this morning!)