[Some heliogeophysical characteristics of a series of especially dangerous crimes].

Geo- and heliophysical situations have been evaluated specially for the days of serial crimes committed during 1980-1990 in USSR. The analysis of 150 episodes (ten separate series) shows that the crimes are most probable immediately or 1-3 days after sharp decrease of solar activity (Wolf numbers), geomagnetic activity (A3 and K indices) and of lowest daily surface and air temperature.