OBJECTIVES: The aim of our research was to evaluate two school based drug prevention program which have been operated by Baranya County Police and Baranya County Drug ambulance.

METHODS: The research program was carried out with standard questioner at schools which are was part one of in these drug prevention programs. 220 students were involved into the study. Students filled in the questionnaire twice: several days before (pre-test) and 10 days after (post-test) the drug prevention program. We processed our data with the help of SPSS and we designed a paired-sample T-test.

RESULTS: The rate of those, who know more about drugs after Police's program have increased by 24.6% and Drug ambulance's result was 20%. Drug ambulance's program reached significant (p=0.048) change in self-knowledge among the students. About the Police's program we can not report the same significant result in the same case (p=0.569). The effect of the Drug ambulance's program also changed the student’s sense of danger regarding drugs significantly. There was a significant change in the trying of marihuana (p=0,008), hallucinogenic drugs (p=0.012) and herbal drugs (p=0.001). However the effect of the Police's program only changed the student’s trying of designer drugs regarding drugs significantly (p=0.071).

CONCLUSIONS: Continuous evaluation of prevention programs are essential. It would be important that only monitorised and professionally suggested programs are realised.