Strangeness -2 studies at KEK

Studies of double-strangeness (S = -2) systems at KEK are summarized. At KEK, beam exposures have been completed in three experiments, namely PS-E176, E224, and E248. The first two experiments provide interesting information on the Xi-N interaction, which will be discussed. In E248, counter alignment calibrations are in progress. A fourth experiment, PS-E373, is waiting for its first period of beam exposure in February 1998 and should provide at least ten times better statistics on S = -2 systems than did E176 and E224.