POLICE SCIENCE TECHNICAL ABSTRACTS AND NOTES.

The article presents technical abstracts and notes from the field of police science. Some of these are: Radiation Hazards of Radioactive Isotopes in Fire Emergencies--The International Association of Fire Chiefs have prepared a report of the hazards and personnel protections necessary in combating fires where radioactive isotopes are involved. The Decimal System of Classifying Single Finger Prints--The decimal system of classifying single fingerprints in the Identification Bureau of the State Police at Sao Paulo, Brazil is described in the Fingerprint Magazine. This system, developed by Roberto Thut, has been in use since 1935. It is based on combinations of numerals according to the fundamental types and sub-types of finger print patterns in our ten-finger system of classification. Checkwriter--A brief but informative discussion of identification problems involving checkwriters appears in the Bulletin of the Bureau of Criminal Identification of the New York State Police. Identification of the make of checkwriter from its work and of the individual machine through its operating defects is described and clearly illustrated.