Throttled! The Detection of the German and Anarchist Bomb Plotters

“Anyone familiar with the waterfront of a great port can appreciate its difficulties as an area to be policed. One of the busiest sections of the community during the daytime, it is little frequented at night. In districts where you find few people you will rarely find lights, and where there are no lights you may well expect crime. The contours of the shoreline are irregular, following usually the original margins of solid ground lining the natural harbor, and for every thoroughfare which can pass as a street there are a dozen or two alleys, footpaths, shadowy recesses and blind holes. Locks and keys and night watchmen will protect the land side of the piers, but from the water side entrance to any pier is easy, concealment still easier, and flight no trick at all…”