Criminal investigations are an essential part of the legal system, helping to bring those who break the law to justice. Synonyms for criminal investigation can vary depending on the context and the depth of the investigation. For example, a legal inquiry, an examination, a scrutiny, and an inspection are all ways to describe a criminal investigation. Other similar terms include forensic analysis, a probe, a search, or a survey. Each of these terms conveys slightly different connotations for the investigation, such as the level of depth or the purpose of the inquiry. Overall, there are numerous synonyms that describe criminal investigations, each offering a nuanced interpretation of this essential legal process.