defer store.runlock()

	policies := newMappedPolicy(name).toSlice()
	var toMerge []policy.Policy
	for _, policy := range policies {
		if policy == "" {
			continue
		}
		v, ok := cache.iamPolicyDocsMap[policy]
		if !ok {
			return v.Policy, errNoSuchPolicy
		}
		toMerge = append(toMerge, v.Policy)
	}
	if len(toMerge) == 0 {
		return policy.Policy{}, errNoSuchPolicy
	}