Identify the Main Point or Issue in the Following Passage

Essay

Identify the main point or issue in the following passage, and decide whether the rest of the passage offers reasons for the main point (such as, whether the passage contains an argument), whether it illustrates (provides examples for) the main point, whether it explains the point, is irrelevant to the point, and so on.
"With little experience in homicide cases, the Greenwich Police Department made a number of critical mistakes. One was not insisting on a speedy autopsy: because the forensic examination of Martha's body was delayed for nearly a day, the time of death is unusually imprecise. Another was the failure to get a search warrant for the Skakel home."
-Newsweek