The principle of "innocent until proven guilty" is a fundamental principle of many legal systems worldwide, including those based on common law, civil law, and Islamic law. Therefore, the vast majority of nations recognize this principle and have it enshrined in their legal systems.

However, there may be some countries where the presumption of innocence is not as strong or is not always upheld in practice. It is difficult to provide a comprehensive list of such countries, as the extent to which the principle is upheld can vary depending on the specific case and the individuals involved. In some countries, for example, there may be instances of political interference in the judiciary or a lack of resources that can lead to miscarriages of justice. It is worth noting that even in countries where the presumption of innocence is strongly upheld in principle, there may be instances where it is not fully respected in practice.

In summary, while there may be some countries where the presumption of innocence is not always fully upheld in practice, the principle of "innocent until proven guilty" is a fundamental principle of many legal systems worldwide.
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