The power of attorney is a powerful legal tool you can use to transfer authority over your business (financial) or health care affairs to another person, known as your agent. There are many reasons you might want to use one. For example, a principal may elect someone to pay their bills in case some sort of ailment should affect their everyday thinking (dementia). In Idaho, you simply have to obtain a power of attorney form, select which powers to grant, and then sign the document in the presence of one witness, although the witness cannot be your spouse or the agent you selected. If either principal or agent would like to view the laws they may read the Idaho Uniform Power of Attorney Act.