Brian Bishop was a police lieutenant when he took the report, so he was an experienced officer and probably sensed the three yr. old accusation was somewhat questionable. By not immediately springing into action, but asking the accuser to furnish a written chronology/details, I bet he was testing her credibility and resolve. That approach makes sense to me. Too bad Nifong didn't entertain a similar open mind to her credibility before all the facts were available.
Poor Brian Bishop. Bet he never expected this!