Paragraph 38 of the explanatory report deals with postal voting. According to the explanatory report, postal voting is frequently possible throughout the western world, although the arrangements differ widely from one country to another. Thus, postal voting may be very widely practiced in one country, and forbidden in another due to the likelihood of fraud. It may only be permitted where the postal service is safe – in other words, protected from deliberate manipulation – and reliable, in that it operates correctly. Proxy voting is permissible only if subject to very strict rules, again to avoid fraud; the number of proxies held by any one elector must be limited.