There is no clearing house for advice from researchers to the Government or other policy-making bodies.
Books giving relevant advice include:

Young, Annabel. (2003) The good lobbyist’s guide : a complete handbook for New Zealanders Auckland [N.Z.] : Exisle Pub.
Colin Gunn (ed) (1999) Change it! : how to influence public policy Wellington, N.Z. : National Resource Centre for Adult Education and Community Learning.

Newspapers publish much ‘life style’ and social advice and material but this is often sourced from overseas.
Little is known of public regard for the social sciences.