Hello Guys,
The first order of business, is to talk to your local Game Warden/ Protector, or whatever they are called in your state. Find out if following the track of a deer is legal under any circumstances. In Germany, from what I, have read, the process is done on a leash. If you turn the dog, loose to "chase" the deer, rather than assisting you to find a wounded deer, you may end up without firearms, or hunting privelages for a period of time. Also, if the training is done incorrectly, you end up with a dog that will chase every deer that they can find, into the next county, whether you are around or not.
Look at a site for the Drahtaar, the German based orginization for the German Wirehaired Pointer (VDD), or NAVHDA. They are a group, with interest in "versatile" hunting dogs.
I hope that this will head you to some helpful information, as well as the deer.
Regards,
Bob