15566. AFTER-SCHOOL PROGRAMS AND GANG ACTIVITIES. It is argued that there is an increased risk of delinquent behavior when youths are unsupervised during after-school hours. Although there are some arguments against the effectiveness of after-school programs, there is also a great deal of evidence (both empirical and evaluative) that such programs at least help in reducing gang activity. 8 pages, 18 footnotes, 10 bibliographic sources.