ALIENS. DENVER Lab tests clear illegal alien, Manuel Rosas of kidnapping and sexual. assault charges. RM Ap 7, 1984 p.6 Hail damage attracts illegal alien roofers to Denver area. RM Jy 24, 1984 p.18 Police suggest selective drive against northside illegal aliens responsible for recent crime along W. 32nd. Ave. RMV 0 30, 1984 p.11 Council questions use of hospital by illegal aliens. RMN Ap 10, 1986 p.8 0