Research into the nature of bullying in schools is ongoing and new strategies are constantly evolving from the various agencies involved in this work. Anti-Bullying strategies can always be improved, levels of bullying can always be reduced. Keep in touch with the latest up to date guidance here.
Below is an example of a child-friendly Anti-Bullying Policy, which is clear, simple and easy to understand. Why not try making something similar for your own school or simply edit this version to reflect your school.