Which of the following is NOT one of the authorities of the civil grand jury?

The civil grand jury primarily has the authority to investigate local governments, including their operations and finances, which encompasses reviewing records and assessing how government entities are functioning at a local level. Their duties typically involve producing reports based on findings regarding various branches of local government, addressing concerns such as financial stewardship and operational effectiveness.

The first two options reflect the primary roles of the civil grand jury, focusing on local government investigations and reporting on those matters. Supervision of inmate conditions in detention facilities is also a relevant aspect of their oversight responsibilities within the context of local government, although it is often more specific to certain jurisdictions.

However, the civil grand jury does not possess the authority to review all financial records of the state government. This falls outside its scope, which is generally limited to local levels. Therefore, the assertion that reviewing state government financial records is one of its duties is not accurate, making it the correct choice for this question.