Somerton Man: KGB search techniques could reveal a clue

This video clip is most interesting, it is an actual film of KGB officers searching Dmitri Polyakov, a Russian GRU General but also in the pay of the CIA for many years.

What caught my attention was the amount of time that seemed to spent on the hands. Those who are familiar with the Somerton Man case would know that when examined he had no marks except for some scratches found between his knuckles, could they have been caused by this type of search?

Comments very welcome!