Now that you have your topic, you need to decide what you want to discuss about your topic. The best way to do this is to begin researching and gathering information. As you gather data, you will probably start forming what your thesis is going to be. In criminal justice, maybe you want to talk about capital punishment. Your thesis statement will be what main idea you want to talk about with capital punishment. For example, Should the death penalty be carried out if the criminal is a minor? Your plan is to choose a thesis statement that you think the audience may be interested in. You want to create a reaction or an emotional response. Your goal is to try to light a fire under the reader and make him think.