Criminal investigation is a broad field of study that covers any and all of the elements that go into solving a crime and building a legal case against the suspects. Considered one of the applied sciences, there are actually several career paths for the criminal investigator. Likewise, people from different disciplines may find themselves doing criminal investigative work. For example, as science has evolved, the role of geneticists and genetic genealogists in criminal investigation and forensic science has really explored.
When writing your paper, you have two distinct approaches you can take. You can write a broadly based paper that describes the overall duties of the criminal investigator and the skills those duties require or you could write a more narrowly tailored essay that focuses on a specific aspect of the criminal investigation or even on a specific case. Here are some topic suggestions: