← All EvidenceDirectTimothy E. Dowd — Direct Examination Timothy E. Dowd William D. Weinreb
Photographs
Georeferenced aerial photographs used as the diagram's reference layer
Timothy E. Dowd described downloading an overhead image through the Massachusetts Department of Transportation and importing it into AutoCAD. He used it to draw houses, roadway edges, and sidewalks around the measured evidence points.
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The aerial photographs supplied the diagram's geographic reference layer, onto which measured evidence points were plotted.