rule "demographic_parity_check" {
  description = "Ensure demographic parity across protected groups"
  
  when {
    model.type == "CLASSIFICATION"
    model.risk_level >= "HIGH"
  }
  
  then {
    assert demographic_parity_difference < 0.05
    assert equality_of_opportunity > 0.8
    
    if (violation) {
      action = "BLOCK_DEPLOYMENT"
      notify = ["ethics_board", "model_owner"]
      log_level = "CRITICAL"
    }
  }
  
  monitoring {
    frequency = "CONTINUOUS"
    threshold_alert = 0.04
  }
}