SUSY Searches: Lessons and Loopholes from LEP

Searches for signatures of the production of particles predicted by theories with supersymmetry at LEP are reviewed. The searches are discussed primarily from the standpoint of their different experimental topologies, with emphasis on new signatures suggested by alternative theoretical models. No evidence for supersymmetric particle production is observed. The null search results are used to constrain the allowed parameter space of models with supersymmetry, and to exclude supersymmetric particle masses within the context of these restrictive models.