Answer: crime scene investigator's job
Step-by-step explanation:
A criminal defense lawyer is the either employed by the government or by the suspect or criminal on his behalf to fight the case against the prosecuting side. The role of the criminal defense lawyer is to research about the case and argue in the court of law with the prosecuting lawyer so as to defend the client from the criminal charges. In attempt to save the client the defense lawyer will try to make the available evidences against the client to be futile and unacceptable for conviction. Such a lawyer can convince the jury or judge that the given report by the forensic expert is incorrect and cannot be accepted as evidence against the client.