From Leithund to Schweißhund
As stated in the "History" section, Bracken are medium-sized dogs with exceptional scenting ability, which are the direct ancestors of the Teckel.
During about the same period (around 1650) in which the feistiest Bracken were selected for underground hunting of predatory quarry, dogs with the best noses were selected out of the calmer, most perseverant and trainable Bracken. These cold-nosed dogs were used to find game on leash prior to the actual hunt, so that the royal hunters would not waste time fruitlessly searching for game. The dogs were called Leithunde (guide dogs).
As soon as the Leithund found the game, the actual hunt could start, sometimes with other dogs, but sometimes with the same Leithunde.
Through the 18th and 19th centuries, firearms were increasingly applied in hunting. The first (wheellock later flintrock) rifles fired shots that were far from reliable in mortally wounding large game. The need was created to search and find the shot game in order to successfully complete the hunt.
The purpose of the Leithunde shifted to finding wounded game on leash. This initiated the development of bloodhounds or in the German language: Schweißhunde.
A straight descendant of the Leithund is the Hannoverscher Schweißhund. This shorthaired dog, and the smaller Bayerischer Gebirgsschweißhund that was developed later, are the current specialists in recovery of wounded game.