England Hockey has a selection of guidance and policies regardless of whether in game or training to create a safe environment for everyone involved in hockey. These cover a number of topics, principle of which are:
Planning Safe Hockey
Injury reporting
Risk assessment
Concussion Policy
Pregnancy Guidance

These policies and other related elements can be found at https://www.englandhockey.co.uk/governance/safeguarding/planning-safe-hockey
Additionally Cirencester has a number of complementary policies which can be found in documents at CHC Health and Safety