John Gill Commentary Deuteronomy 22:27

"for he found her in the field, the betrothed damsel cried, and there was none to save her." — Deuteronomy 22:27 (ASV)

For he found her in the field
Which is a circumstance in her favour, from which it might be presumed that she was forced, and did not consent; for had the sin been committed by agreement, they would doubtless have betook themselves to another place.

And the betrothed damsel cried as it might be concluded from the above circumstance she did, and as she herself declared, and which he could not gainsay, or however disprove:

and there was none to save her ;
to help her against him, and deliver her out of his hands.