INTRODUCTION: Bloodstain pattern analysis is an important part of forensic science which helps investigators determine what happened, how and when by using mathematics, physics and biology. It relies on its understanding of different blood properties and of how blood behaves once it leaves its source which is why blood patterns are divided into subgroups based on the speed of blood and the shape of the blood pattern after it falls. This division helps us determine what type of force was used- force created by beating, stabbing or firearms. To determine the source of the force and the position of the victim different methods are used such as stringing method, trigonometric method and computer programs. OBJECTIVE: To confirm two hypothesis, that is to porve that by using the stringing method minimal number of blows and the area as well as height of the blood source can be determined. METHODS: To analyze the blood patterns stringing method was used. Blood patterns were divided into different groups in which each blood drop was measured to determine its width and length as well as the angle of its impact. After, a protractor was used tu pull a string in the direction form which the drop had originated. RESULTS: By using the bloodstain pattern analysis it was determined that there were 6 bloodstain patterns on the wall which means there was minimal 7 blow. By pulling each string at its determined angle the result was an overlap of the strings in one point ( point of origin). CONCLUSION: Both hypothesis were confirmed, but the research has shown certain flaws in the stringing method which is why other methods are more commonly used in bloodstain pattern analysis.