Police have received up to 30 calls from the public to an 0800 number set up following the shooting of road worker George Taiaroa.
A tangi was held for the 67-year-old yesterday in Levin.
Police say the calls they have received mainly relate to possible sightings of vehicles, following the shooting on Tuesday on Tram Road near Tokoroa.
The person who shot him is believed to have sped off in a blue four-wheel-drive - possibly a Jeep Cherokee.
Police have also completed their search of the Waikato River, but say nothing of significance has been found.
