This study aims to analyze the effectiveness of the application of Scientific Crime Investigation in proving criminal cases and the urgency of implementing scientific crime investigation in proving criminal cases This research was conducted using empirical research methods. The data obtained, both primary and secondary data, are categorized according to the type of data. Then the data was analyzed using qualitative methods The results of this study indicate that: 1). The application of Scientific Crime Investigation (SCI) in proving a crime is a quality assurance and quality control, where in proving a crime, the application plays an important role in minimizing errors that often occur when processing evidence, and without any certain facilities and facilities, it is impossible for law enforcement to take place smoothly. Such facilities or facilities include, among others, educated and skilled human workers, good organization, adequate equipment, sufficient finances and so on. 2) Science in proving criminal cases has a broad understanding that covers almost all disciplines used to conduct investigations. The application of science through the scientific crime investigation (SCI) method is a breakthrough in the evidentiary process in proving a crime. Proof of criminal cases by SCI cannot be separated from the assistance of the Forensic Laboratory, which is the place for checking evidence using scientific knowledge

Cyber crime is a crime by using computers and internet access that knows no national borders. Losses that can arise from cyber crime also surpass the harm caused by conventional crime. Cyber crime prevention encountered many difficulties, one of them in the legal arrangement because the form of cyber crime always experience the development along with the progress of information technology. AbstrakKejahatan dunia maya adalah kejahatan dengan menggunakan komputer dan akses internet yang tidak mengenal batas negara. Kerugian yang dapat timbul dari kejahatan dunia maya juga melampaui kerugian yang disebabkan oleh kejahatan konvensional. Pencegahan kejahatan dunia maya menemui banyak kesulitan, salah satunya dalam pengaturan hukum karena bentuk kejahatan dunia maya selalu mengalami perkembangan seiring dengan kemajuan teknologi informasi.

Cyber crime is a crime by using computers and internet access that knows no national borders. Losses that can arise from cyber crime also surpass the harm caused by conventional crime. Cyber crime prevention encountered many difficulties, one of them in the legal arrangement because the form of cyber crime always experience the development along with the progress of information technology. AbstrakKejahatan dunia maya adalah kejahatan dengan menggunakan komputer dan akses internet yang tidak mengenal batas negara. Kerugian yang dapat timbul dari kejahatan dunia maya juga melampaui kerugian yang disebabkan oleh kejahatan konvensional. Pencegahan kejahatan dunia maya menemui banyak kesulitan, salah satunya dalam pengaturan hukum karena bentuk kejahatan dunia maya selalu mengalami perkembangan seiring dengan kemajuan teknologi informasi.