Now that confessions are coming under increasing attack in the courts, U.S. police and prosecutors must rely more on investigation, less on the interrogation of suspects that has long been the basis of most criminal convictions. Fortunately a host of new crime-detection devices are being perfected to help law-enforcement officers. Items:
> NEUTRON ACTIVATION ANALYSIS links suspects to incredibly small bits of physical evidence that defy conventional chemical or spectroscopic analysis. Tiny flecks of paint from a jimmied door may turn out to be crucial when found on a burglar's clothing, simply because atomic particles emit specific radiation patterns when properly stimulated...
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