As the use of drugs is becoming a controversial issue today in the society, we discussed it as a group, to explore this issue further as we possess a high interest in how drugs cause an effect on the civil group. The proposed design ‘Narcolyzer’ is a device which is used to detect the presence of narcotic drugs through saliva/breath. If drug usage is detected, its confirmation is done by a blood test which is similar to a blood glucose test. The main objective of the design is to make it easier for the police to detect the drugs by making the process of taking samples easier and obtaining results faster, without causing much inconvenience and time delay to the passengers. The device is based on sensor technology and is easy to handle & maintain and able to provide accurate results.