two questions just like yesterday

Fully explain the difference between interview and interrogation. Then, identify the preparations taken, when, where and how you would conduct an interrogation. From the video, what did you find to be the most important information given? How will you use this in your own investigations? What are the legal limits of an interrogation? Of an interview?
As the Investigator, create an investigative report which details the investigation from the original scene, interviews, evidence, arrest(s), and probable charges for the offender(s). Be sure to list the practical procedures that need to be followed in your investigation.