What do we call 'a person who is believed to have possibly committed a crime'?

What do we call 'a process of examining a crime carefully, esp. to discover the truth'?

The investigators spent hours studying CCTV _____ from the crime scene.

Officers will _____ an area to prevent any further incidents.

The officers needed a warrant to _____ the house.

The detective was able to _____ an arrest after gathering enough evidence.

What is a synonym for 'a criminal'?

Which verb fits this definition: 'to tell someone that you will kill or hurt them or cause problems if they do not do what you want'?

Which verb fits this definition: 'to frighten or threaten someone, usually in order to persuade them to do something that you want them to do'?

The police decided to _____ an investigation _____ the robbery.

Which verb fits this definition: 'to make a serious or formal request, especially to the public, for money, information, or help'?

The team worked hard to _____ a culprit in the case.