That said, any early education with a focus on criminology is likely to help with certain aspects of studying law. Criminal Law is often a required course in law schools the world over and generally part of Bar exams or their equivalents. Most countries do not have a specific educational path for becoming a criminal lawyer versus any other sort of lawyer. However, outside the US, many countries do differentiate between being a barrister and a solicitor, so you might want to take that into account depending on where and how exactly you want to practice criminal law (e.g., behind the scene sor upfront litigating before a courtroom).
If criminology is a passion of yours, do follow it! So much can happen on the way to becoming a lawyer that may change your career path. You might change the practice of law you seek to focus on, you might find another career that interests you more than becoming a lawyer and change your mind about law school entirely! But it is important to select as your major a subject that is of interest to you, which will give you exposure to other careers, and in which you will perform well.
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