Final answer:
Research for new insights and innovative solutions to health problems is part of the policy development core function in public health, which involves formulating health policies based on research and assessment to improve community health outcomes.
Step-by-step explanation:
The necessary service of research for new insights and innovative solutions to health problems is a component of the core public health function of policy development. This function encompasses activities such as identifying critical problems and barriers to health, exploring strategies for sustainable health education and disease prevention interventions, and establishing policies based on the research findings and data gathered through assessment.
The ultimate goal of policy development in public health is to create a framework that allows for the implementation of effective programs and interventions that can lead to better health outcomes for communities.