Abstract Neutron emission would be a convincing proof for cold fusion of deuterium in palladium as proposed by Fleischmann and Pons. In recent experiments essentially no neutron events of technical interest have been observed. But Jones et al. claim for deuterium charged titanium and palladium a low fusion rate of almost 10 −23 events per second and D-pair above background. We have therefore repeated the search for neutrons, but using electrochemically controlled high deuterium concentrations in palladium and a NE-213 neutron detector of well known efficiency. The result of this investigation is that a possible fusion rate would be lower than 10 −25 events per second and D-pair.