The main goal of this study was to establish forms of deviance (smoking alcoholism, narcotics) whit scholars in secondary schools in Belgrade. Sample involved 457 scholars, 239 (52,3%) female and 218 (47,7%) male of 12 to 17 years old. We investigated what was the main reason for using smoke alcohol, drug, and theirs using in family environment. The most frequent reason for using narcotics was relief (23,39%), popularity (16,31%), and desire for mortality (10,38%). Majority of scholars taste the alcohol (73,51%), and the smoke (56,24%), but haven't experience whit drugs (95,84%), only 1,31% is using occasionally. Frequency of using smoke every day is 5,91%, drinkers 0,66%, and 2,41% those who taste drug only ones. In family, cigarettes are most frequently used (34,85%), than medications (32,96%), alcohol (13,32%), and drugs 0,55%. On the larger sample of 664 pupils of the same age we investigated influence of family, school and society on the same deviance. It is found that family (89,31%) has the greatest influence on pupils but not school (28,46%) or society (19,28%). Also we found that school don't have influence on proper development (76,36%). We have done the comparison of too school generations in 1998/1999 and 2000/2001 years. The influence of family is equally significant (88,41%), influence of school (51,69%) was more important while the fault of society is 18,15% smaller.