  We report some key results from the optical emission line study of a complete
sample of compact radio sources. We find strong evidence for jet-driven
outflows in the circum-nuclear emission line gas namely: 1) highly broadened
and blueshifted emission line components (up to 2000 km/s), 2) shock ionised
gas (broader, shifted components), 3) consistency in the scales of the emission
line gas and the radio source and 4) trends between the maximum outflow
velocity and radio source size (and orientation). Full details can be found in
Holt (2005).
