Tribune News NetworkDohaFrom nabbing quarantine violators to contact tracing and monitoring public gatherings that aid transmission, Qatar's Criminal Investigation Department is playing a key role in combatting the spread of coronavirus.The department, in coordination with the Public Prosecution, aggressively pursues all violations of quarantine conditions and helps investigate the chain COVID-19 transmission.The department also keeps a close watch of roads, streets, majilises, farms and restaurant-fronts in Qatar to monitor for unlawful gatherings. All forms of public gathering in banned in Qatar as part of COVID-19 preventive measures.The department uses technology, modern surveillance methods and patrols to prevent breaches of the ban and effectively fulfill other duties.