nirih - Our office has a control system installed. Once a week we report on the work done

lojato - If you have doubts, you can install employee monitoring software https://www.refog.com/employee-computer-monitoring-software.html on employees' computers
Refog Employee Monitor records and monitors your employee's activities and provides you on-site and remote access to employee's logs and computer screens in real time. The software-only solution can be installed in a matter of minutes, and does not require any hardware other than an ordinary PC.