Lawyers agree that fake IT professional resume is NOT illegal, may be unethical. It is not considered a criminal offense, and the federal agencies (police) cannot charge people or sent to jail for fake resume. The client who hired the person might file civil case (related to money) accusing that IT consultant and the IT company, but they will have a lot of burden to prove the amount of money they lost by hiring an inexperienced person. Most clients never even worry about filing a case because the amount of money they have to pay the lawyer is less than the money they will most probably win in the case. On top of it, clients should be really stupid just to accept an employee because the resume looks perfect, clients have the responsibility to verify that the experience in the resume is legit, and real.

P.S. I do not work for a consultancy, and never had a fake resume. I work full time with a client as an just graduated intern with no experience.