A court can order you to take one, yes.
no
Take a lie detector test .
Depends on what it's for...
Yes.
Yes. But lie detector evidence is usually not enough. Also you can not be forced to take one.
take a lie detector test
I would. A relationship is based on trust. It's obvious he doesn't trust your word on the issue. No. But ask him if the detector is full qualified or homologued. And he must test the detector. You have to ask him if he trust you.
Lie detector tests are not 100% accurate and although given by law they are not admissibly in a court of law and using a lie detector is not used for public use; therefore it would not make any point for your wife to take a lie detector test. Hypothetically, if your wife did cheat she would probably decline taking the test.
If you are not guilty or you know how to beat a lie detector then yes.ADDED: (in the US) The results of such a test are NOT admissibile in court - however - the police CAN use them to assist in conducting their investigations.
A background check will be done and you will be required to take a lie detector test and answer a series of questions on paper.
That would depend on the essential job functions. For instance the safety of the employee or other individuals can be at risk due to health reasons of the employee. Or for another example coal miners are often required to have a certain amount of exams due to the high potential of acquiring black lung.
then your not lying ...
detect nytrogen