You better not hire an illegal worker to work for you. Last year my boss hired several illegal workers. All of them stole stuff, but my boss couldn't report them to the police, because he had broken the law by hiring them!
你唔好請個黑工幫你做嘢，舊年我老細請咗幾個黑工，佢哋都偷嘢，但老細唔可以報警，因為係佢犯法嘅！