Final answer:
The form used to document close of day security checks to ensure classified materials are stored properly is called a Security Check Form.
Step-by-step explanation:
In the field of law, the form used to document close of day security checks and ensure that classified materials are stored properly is known as a Security Check Form.
This form is typically used in government agencies or organizations that handle sensitive or classified information. It allows security personnel to record details of the security checks performed, such as the time, date, and location of the check, as well as any discrepancies or concerns observed.
By documenting these checks, it helps maintain accountability and ensure the proper handling and storage of classified materials to protect them from unauthorized access or theft.