Before the act is done, or the decision is made, regard must be had to whether the purpose for which it is needed can be as effectively achieved in a way that is less restrictive of the person's rights and freedom of action.
When making a decision on another’s behalf, the decision maker must consider the options available to them and whether the decision taken would interfere with the individual’s basic rights and freedoms. In circumstances where this would happen, the decision maker should always consider whether a less restrictive approach is possible.
Occasionally, what is in an individual’s best interests is not necessarily the least restrictive option available but a less restrictive one. In practice, you need to consider whether it is possible to provide the intervention or support in a less restrictive way, keeping intrusion to a minimum while still ensuring the person’s needs are being met.
A case study example is available to support this information - Less Restriction.