Passports are an important document that allow people to travel internationally. However, some people may be wondering if it is illegal to alter a passport. The answer to this question is somewhat complicated. Generally speaking, altering a passport does not constitute a crime unless the alteration results in the document being fraudulent or false. In other words, altering a passport typically only becomes an issue if the altered document is used to attempt to illegally enter or exit the country of origin. There are, of course, exceptions to this rule. For example, if someone alters their passport in order to avoid being identified by authorities or for other reasons that pose a threat to their safety, then they may be breaking the law. Additionally, if someone alters their passport in order to gain an advantage over others (for example by hiding their true identity), then they may be committing fraud. ..