Answer:
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If Erika's teammates so happened to give her a lot of reasons to go along with their plan, then the implicit message (or the underlying meaning; 'read-between-the-lines- message) would be that Erika should agree too it because it is a good plan that they were proposing.
The answers are, 1.) It supports the idea that the burglary was planned in advance by men who were not career criminals or “typical” burglars. 2.) It suggests that the burglary was complicated and needed to be deliberately planned. 3.) It creates an unbiased tone, which allows the facts to speak for themselves.