hello aspirant,

There are no prerequisites to be a journalist,even if you are a law student. It can just make you a habit of writing regularly,

steps to be a journalist,

1. Earn your bachelor's degree. One of the keys to starting a career in journalism is earning your bachelor's degree. ...
2. Develop your writing skills. which is the most important thing.
3. Establish connections with reporters and editors. ...
4. Intern with a newspaper, magazine or media company.

and then you can start your career in the field.

hope that helps