This study analyzed the short-term effects of the Youth Advocate Liaison (YAL) service upon selected behavioral measures from the school, police, and courts, using a sample of 147 former securely detained youth, aged 13 through 18, in Lake County, Illinois. Data sources were 14 school districts, 2 special education units, 321 police municipalities, and the juvenile court. The methodological approach was a complete model of the problem using a Logit analysis to determine the likelihood of each desired outcome behavior. The nine independent variables were YAL service; attendance in school prior to detention; estimate of grade level of achievement; referral for special education; delivery of regular and special instructional services; related service; family income; age; and race. It was found that the presence of the YAL increased the probability of a station adjustment disposition (a preferred disposition) for all detainees regardless of race. Other findings include the following: (1) YAL service increased a White detainee's probability for school attendance but did not affect that probability for Black or Hispanic detainees; (2) YAL presence in conjunction with a referral for special education increased the likelihood for suspension; (3) YAL service decreased the probability for future custody for Hispanics and somewhat for Whites, but increased that probability for Black detainees. (Author/KM)