In addition to an earlier survey "Smoking, alcohol consumption and the use of drugs by schoolchildren from the age of ten" (Steinmetz Archive Nr. P1057) among pupils of regular schools, pupils of schools for special education have been interviewed about this subject. Smoking behaviour / number of cigarettes per day / attitude of parents towards smoking / use of alcohol, kind of drinks / r. drunk at last occasion / how and did r. get the drinks / opinions of parents about drinking alcohol by r. / knowledge and use of soft drugs, use of it by friends and opinion of parents / use of sleeping pills, tranquillizers, cocaine, heroine, xtc, amphetamine / absenteeism Background variables: basic characteristics/ place of birth/ residence/ household characteristics/ occupation/employment/ education/ religion