My parents have registered lasting power of attorneys so I can act for them financially at a later date if it becomes necessary. However I have no idea how to enact them, presumably a doctor needs to decide if they lack mental capacity at any point? Also my mum wants to write her pin no down somewhere so I can use her card if she no longer can, this doesn't sound right, maybe the bank can issue a card for the attorney? Loads of info out there on how to set the power of attorney up, none on what to do next!!