Do most city government jobs drug test by hair or urine?

I am thinking it is urine becuase it is cheaper, but i am not sure. I live in Michigan

Do most city government jobs drug test by hair or urine?

I think that most jobs has a urine test . I know my old employer did. I've never heard of a hair test before.Is it a new kind of test? I've never heard about it until I read your question.

Do most city government jobs drug test by hair or urine?

the hair test is able to go further back, and is more expensive. it is usually reserved for high security positions.