Except as provided in subsection (b) of this section, the following are not civilly liable for taking a blood sample from an individual without consent of the individual or for testing the blood sample, if the blood is taken at the request of a police officer or a sheriff or officer in a sheriff’s office for a criminal investigation: A licensed hospital. A physician. Any of the following who take the blood in the course of duties at a licensed hospital: A resident. An intern. A registered nurse. A health career technician. A person who negligently takes blood samples in a manner otherwise than according to accepted medical practices or who negligently performs tests is subject to civil liability for injury resulting from the person’s negligence.