Here is the logic for the staff nags:
Police check - This will generate a Nag if the Police Check Issue Date within 1 month of being 3 years old
Working with Children - Working Children ExpiryDate within one month
First Aid - FirtAidIssueDate is 3 years old or within 1 month of being 3 years old
Car rego - Within 1 month of expiry
Supervision date - within 7 days of expiry
Right to work is determined by:
Police check
Working with Children check
Key info is determined by:
Right to work OR
First aid and Car rego