A self written will shall be written by the testator in person and signed by the testator, indicating the date and place of the month, year and year. The circumstances under which a will is invalid are as follows:
1. Forged wills are invalid;
2. The contents of the wills that have been tampered with are invalid;
3. The will made by a person without or with limited capacity is invalid; wait.
Article 22 of the Inheritance Law stipulates that wills made by persons without or with limited capacity are invalid.
A will must express the true will of the testator, and a will made under duress or deception shall be invalid.
A forged will is void.
If a will is tampered with, the tampered contents shall be invalid.
