When you try to remove a camera from the Mobotix HUB and get the message:
Does this mean that you have created an Evidence Lock in the HUB DeskClient for this camera.
How to remove it you can see in this article
Open the HUB DeskClient
→ Click on Playback and select the camera which you want to delete
Click on Evidence Lock (Red Frame)
Click on View
Select your Evidence and click on Delete
Click Yes
Now you are able to delete the camera in Mobotix Hub ManagementClient