With the emergence of smart cities, smart homes, and smart everything, the Internet of Things (IoT) technology has gained paramount importance in the human-lives. However, IoT devices are easily compromised or hacked by malicious individuals. IoT forensics has emerged in investigating smart devices with the increase of cybercrimes in IoT networks. Owing to the ease of communication anywhere at any time, smart devices contain sensitive information such as health status, credentials, and so on. In accordance with, support IoT forensics with privacy preservation, developing the forensics methodology for the distributed IoT environment has become a hot research topic among researchers.