if authz := newGlobalAuthZPluginFn(); authz != nil {
		ok, err := authz.IsAllowed(args)
		if err != nil {
			authZLogIf(GlobalContext, err)
		}
		return ok
	}

	// Policies don't apply to the owner.
	if args.IsOwner {
		return true
	}

	// If the credential is temporary, perform STS related checks.
	ok, parentUser, err := sys.IsTempUser(args.AccountName)
	if err != nil {

		if false {
			return &ParentError{
				Reason:  ParentErrorParentRefConflict,
				Message: fmt.Sprintf("parent service: %q is invalid", parentRef.Name),
			}
		}
	} else {
		// First, check section and port apply. This must come first
		if parentRef.Port != 0 && parentRef.Port != parent.Port {
			return &ParentError{
				Reason:  ParentErrorNotAccepted,
				Message: fmt.Sprintf("port %v not found", parentRef.Port),
			}
		}

		// Objects matching prefixes should not leave delete markers,
		// dramatically reduces namespace pollution while keeping the
		// benefits of replication, make sure to apply version suspension
		// only at bucket level instead.
		VersionSuspended: globalBucketVersioningSys.Suspended(bucket),
	})