The Neuruppin Institute psychiatric file on Fritz Seelig consists of a psychiatric file documenting one of the first victims of involuntary sterilization at the Neuruppin Institute (Landesanstalt Neuruppin) in Berlin.

Fritz Seelig was recommended to the Neuruppin Institute at the age of 10 by the public school system: Fritz S. behaves like an animal, devouring raw meat... He is becoming downright dangerous to the public, and because he strangles his siblings at home... he belongs... in an institution."

Clinic doctors made a request for Seelig's sterilization in September 1934, on the grounds that it would be a necessary safety precaution in order for Seelig (then 28 years old) to be released into community home care. This was a very early application of the new forced sterilization law (Gesetz zur Verhütung erbkranken Nachwuchses) that went into effect on January 1, 1934.

In addition to the doctor's evaluation and sterilization orders, the file includes letters from the patient's mother to the clinic, family care contracts, medical supply bills, and baptism certificates.

According to the website of the present-day institute, it is acknowledged that involuntary sterilization was performed on the institute's patients under the Nazi Party (Nationalsozialistische Deutsche Arbeiterpartei or NSDAP) laws. However, a former doctor that was responsible for many of these cases disappeared in 1945 and numerous euthanization files are missing from the institute. The doctor who evaluated Fritz Seelig, Dr. Julius Tietz, committed suicide by poison in May 1945.

The descriptive content in this note was adapted from the seller's (Mark Funke, Bookseller) description of the material.