Case records must be documented to support eligibility, ineligibility, and benefit level determinations. The documentation shall be in sufficient detail to permit a Quality Control reviewer to determine the reasonableness and accuracy of the determination. If verification was required to resolve questionable information, the worker shall document why the information was considered questionable and what documentation was used to resolve the questionable information. The worker shall also document the reason why an alternate source of verification, such as a collateral contact or home visit, was needed and the reason a collateral contact was rejected and an alternate requested.