Final answer:
An admission plan addressing health and safety must be developed before starting any study involving human participants, ensuring informed consent and participant protection.
Step-by-step explanation:
An admission plan must be developed prior to the commencement of any study or activity related to human participants to address health and safety needs. This is a critical step in ensuring the wellbeing of all individuals involved. It is of utmost importance that participants are fully informed and have consented to be part of the study. Researchers have a responsibility to protect those who are part of their studies by carefully planning and implementing safety measures.