The paper is dedicated to the relevant topic of applying electronic monitoring measures to individuals who have been placed under house arrest, using the experiences of two countries — France and Iran — as case-studies. The key issue explored in the study is the proportionality criteria of this measure in relation to the suspect’s or accused person’s right to privacy and freedom of movement The authors conclude that French legislation establishes the principle of proportionality between the aforementioned measure and the accused’s freedom of movement, as well as defines clear criteria for proportionality. In contrast, Iranian legislation does not establish the proportionality of this measure with the accused’s freedom of movement, nor does it address the scope and duration of this measure at the legislative level. The authors also point out that French law requires the accused’s consent to wear electronic bracelets in order to respect their dignity and ensure privacy. Iranian law does not clarify the status of the accused’s consent or the consequences of failing to comply with this procedure.