Springtime clashes between city police and partying students in 1989 and 1990 did not return to campus neighborhoods in 1991, an effect many attribute to efforts of a File p#K)io community relations task force that formed two years ago. This photo was taken at a party dunng the spring of 1990, shortly before tear-gas was used. Students, police see fragile relations improving By Dan Eisler Emerald Contribute! Itisl over pm. Sat Ham-5pm ^