Nope! Once the transformation has reached its final stage, the NPC can be attacked and then "punished" once defeated. There should be an option to take them to Dr. Quinn, then, to be scanned. Enslavement is not required. c:
Do you mean to scan the NPC after they have been transformed by a drug, to take them to Dr Quinn? When the transformation has reached its final stage, you need to find them, attack them, and in the punishment you will be able to leash them and take them to Dr Quinn. You don't need to enslave them.
