\title{Stratifying the derived category of cochains on $BG$ for $G$ a compact Lie group} \author{Dave Benson} \address{Institute of Mathematics, University of Aberdeen, Aberdeen AB24 3UE, UK} \author{John Greenlees} \address{School of Mathematics and Statistics, University of Sheffield, Hicks Building, Sheffield S3 7RH, UK} \begin{document} \begin{abstract} The main purpose of this paper is to classify the localising subcategories of the derived category $\sfD(C^*(BG;k))$ where $G$ is a compact Lie group and $k$ is a field. We also prove a version of Chouinard's theorem for $\sfD(C^*(BG;k))$, we describe the relationship between induction and coinduction for a closed subgroup of $G$, and we use this to describe the relationship between Hochschild homology and cohomology of $C^*(BG;k)$. \end{abstract}