Rudiger-Alexander "Roger" Walk

Dr. Rudiger-Alexander "Roger" Walk was a German toxicologist who worked for Philip Morris at their overseas biological research lab INBIFO. As a senior scientist at PM with qualifications in toxicology, biochemistry and biology, he provided scientific and technical information, guidance, education, and advice to Philip Morris on tobacco, cigarette smoke, and smoking. He participated in, and helped draft and review corporate submissions to regulatory agencies worldwide; participated in internal scientific research and development, for example through funding of external scientific research of scientific information, and he represented Philip Morris on scientific issues to external bodies.

INBIFO (an acronym short for Institut fur Biologische Forschung GmbH, in Cologne, Germany) was a Philip Morris toxicological research institute with a main focus on inhalation toxicology. At INBIFO, Dr. Walk served as a Research Scientist, study director and Department Head from 1978 to 1985, was Research Director from 1985 to 1988, and was the Executive Scientist responsible for research projects in Asia from 1995 to 1996.

From 1996 to 1999 he was a Research Fellow in PM's Scientific Affairs Asia-Japan-Australia, based in Hong Kong. Walk was a Fellow in PM's Worldwide Scientific Affairs department in New York in 1999, and became Director of Worldwide Scientific Affairs for PM USA and Acting Director Asia-Japan-Australia in 1999, based in Richmond, Virginia.

Walk was a Diplomate of the American Board of Toxicology.

As head of Philip Morris Scientific Affairs department in Asia circa 1996, Walk was responsible for coordinating PM's Asian Environmental tobacco smoke scientific consultants program ("Asian Whitecoat Project). The project was implemented to fight smoking restrictions in Asian countries. This was a project for recruiting third party scientific consultants who would support PM's positions against smoking restrictions.  Walk wrote in a 1996 PM "Plan for Asia":

Unwarranted smoking restrictions in workplaces and public facilities are often based on unbalanced reporting of scientific results. In order to balance those misrepresentations, credible scientists will be supported to inform the public about facts that have been omitted or misquoted.