  We use the results of the SCUBA Local Universe Galaxy Survey, a submillimetre
survey of galaxies in the nearby Universe, to investigate the relationship
between the far-infrared--submillimetre and radio emission of galaxies at both
low and high redshift. At low redshift we show that the correlation between
radio and far-infrared emission is much stronger than the correlation between
radio and submillimetre emission, which is evidence that massive stars are the
source of both the far-infrared and radio emission. At high redshift we show
that the submillimetre sources detected by SCUBA are brighter sources of radio
emission than are predicted from the properties of galaxies in the local
Universe. We discuss possible reasons for the cosmic evolution of the
relationship between radio and far-infrared emission.
