Under what condition may lie detector tests be administered?

Lie detector tests, commonly known as polygraph tests, may be administered only if state law permits it under certain conditions. Various laws regulate the use of lie detector tests, and in many jurisdictions, including California, the use of such tests is restricted to specific scenarios, often in connection with investigations or specific employment situations.

For employers to administer these tests, they must comply with legal guidelines that include informing the employee about the purpose of the test and obtaining consent. Additionally, if an employer fails to follow state laws, they could face legal consequences, making it essential for the administration of lie detector tests to be within the bounds of the law.

In contrast, the other options suggest circumstances that do not align with legal standards or best practices. The implication that lie detector tests can be administered without written notice or at any time for any employee disregards legal frameworks meant to protect individuals' rights. Similarly, limiting the administration solely to the hiring process overlooks scenarios where a polygraph may be legally permissible during an ongoing investigative process.