This document discusses developing evidence-based policymaking through establishing "lines of argument". It describes a technique used by Defra to scope evidence needs by engaging stakeholders to identify: their goal definitions, underlying values, and evidence to support their position. This process allows for alternative interpretations and dissent. The document evaluates that this technique effectively broadened thinking, communicated complex messages, and structured choices for decision makers.

1. Louise Shaxson Associate, Delta Partnership Impact & insight workshop King’s College London 25 October 2007 Practical tools for evidence based policy making: DEVELOPING LINES OF ARGUMENT