Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

In the movie Jack Reacher: Never Go Back, Jack Reacher has a sheriff arrested by military police because this sheriff is possibly involved human trafficking.   Can military police arrest a civilian on US soil? I thought MPs were only allowed to operate within military personnel.
Can military police arrest civilians on US soil?

In the movie Blue Jasmine by Woody Allen, Jasmine slept with Dwight without telling to Hal and they broke up.  And she comes to Hal for accusing his relationship with a teenage girl, calls to the FBI and cuffs him.  Why did Jasmine arrest Hal?
Why did Jasmine arrest Hal?

Towards the the end of the last episode of Bodyguard series 1, the Chief of Police is watching a television news report summarizing the results of the investigation into the bombings.  The head of the Secret Service is then mentioned, and his picture is shown as being under investigation. Why was this character being investigated by the police, given that (spoilers follow):    The deadly bombing campaign was the result of an alliance between Islamic terrorists and organised crime, and was not an insider job by either politicians or the Secret Service.

Why was this character mentioned in the News in the final moments of Bodyguard?

