"Furthermore, polling station officials must check whether the voter has already voted in the election. Unfortunately, “multiple voting” is still a common problem in a number of states in the region. In principle, it can be avoided if the voters are properly identified and registered, and the voter lists are signed by the voter (or marked by the election officials) when voters receive the ballot papers. However, in practice, there are many instances in which voter lists were not signed by voters, or in which multiple similar signatures with the same handwriting were found on the voters lists (see for example, CG/BUR (11) 95; CG/BUR (11) 122rev). The latter may indicate either “multiple voting” or “family voting”. "