General Power of Attorney
A power of attorney allows you to delegate authority to someone else for all or specific tasks. The delegation of power can be for a specific time or until the power is revoked. Examples of when you may wish to grant a power of attorney could be when you are abroad and wish for someone to manage your affairs or if you need to appoint someone with greater experience than you to handle a specific task.
There is no need to register a general power of attorney or any particular formalities. Always remember that you will remain liable for the actions of the person acting under the power you grant as must therefore ensure you only grant a power to someone you trust explicitly.
Anyone over 18 with full mental capacity can grant a power. It can however only cover things which you have the right and capacity to do yourself in a personal and not official capacity.