Nucleon spin structure measurements at DESY

Abstract Measurements are reported for spin asymmetries in inclusive and semi-inclusive deep inelastic scattering on on polarised 3 He and hydrogen targets. The data were collected by the HERMES experiment at HERA/DESY and cover a kinematic range of 0.023 – 0.6 in ξ. The extraction of polarised quark distributions is described and preliminary results are presented. Several options for future measurements addressing the spin structure of the nucleon at DESY are mentioned.