If you have to have your memory refreshed with your report more than a couple of times (or at all in a simple case), cannot articulate your methods of investigation, use an inordinate number of vocalized pauses, allow yourself to get flustered, or just generally look like a dunce, the defense attorney has successfully tacked you on a cross.

FORBES: Q: What are some cultural faux pas in police departments?

Although the first investigation involving geoforensics was at the start of the 20th Century, Doyle's famous detective was using the methods to solve crimes in London some 30 years before.

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