Compulsory voting
Countries that have compulsory voting by law but do not enforce it:Although voting in a country may be compulsory, penalties for failing to vote are not always strictly enforced. In Australia and Brazil, providing a legitimate reason for not voting (such as illness) is accepted. In Argentina, those who were ill on voting day are excused by requesting a doctor to prove their condition; those over away from their voting place are also excused by asking for a certificate at a police station near where they are. Belgian voters can vote in an embassy if they are abroad or can empower another voter to cast the vote in their name; the voter must give a "permission to vote" and carry a copy of the eID card and their own on the actual elections.
Voting rights in Singapore
One issue that has arisen is whether a Singaporean who votes in a foreign country where the right to vote is not exclusive to nationals of that country is disqualified from voting in a Singapore election. For instance, the United Kingdom permits citizens of Commonwealth countries, including Singapore, who are resident in the UK and have leave to remain there (or do not require such leave) to register to vote in general elections and local government elections. When queried, the Elections Department stated that since suffrage in the UK is not exclusive to British citizens, Singaporeans who vote there are still eligible to vote in Singapore. However, this interpretation of the PEA has not been tested in court.