What are the steps in a criminal procedure?

Then, investigation of crime. The purpose of investigation is to gather evidence to identify a suspect and support a arrest. 
2. arrest 
3. prosecution 
4. Indictment 
5. Arraignment
6. Pretrail  detention 
7.plea bargaining
8.Trial/ adjudication of guilt.

Many people's first introduction to the legal system occurs during a criminal case. Each criminal case is different, but there are some steps that are common to most, if not all, criminal cases. In this section you will find information on what to expect at each stage of a typical criminal case -- including tips on the arrest process, plea bargains, sentencing options, and more. The resources on this page are meant to provide a general overview of a criminal matter---from arrest to the appeals process. The laws in your state and/or city may deviate significantly from those described here. If you have specific questions related to your situation you should speak with a local criminal defense attorney.
But here's the order:

2. arrest 
3. prosecution 
4. Indictment 
5. Arraignment
6. Pretrial  detention 
7.plea bargaining
8.Trial/ adjudication of guilt.