The police can track a Nintendo Switch in certain circumstances. The Switch can connect to the internet via WiFi and can also be connected to a mobile data network using a special adapter. The Switch can be traced through its IP address if it is connected to the internet. However, it is important to note that tracking a device like a Switch is not a simple process. The difficulty and resources required to track a device will depend on various factors, including the specific technology and capabilities of the device, as well as the level of access and cooperation available from internet service providers and other third parties. Suppose you are concerned about the potential for your Switch to be traced. In that case, you can protect your privacy by disconnecting the device from the internet when it is not in use and using a VPN (a virtual private network) to encrypt your internet connection and mask your IP address. It's also worth noting that the police will generally only seek to track a device like a Switch if there is a valid legal reason, such as an ongoing investigation or a court order. If you are not involved in any illegal activity and have nothing to hide, you should not have any reason to be concerned about the police tracking your Switch.