I'm not sure I'm in the right place for this but I guess there is no harm is asking. I'm currently in a custody battle with my ex and there are some messages supposededly sent and deleted on FB messenger over a year ago I guess? Anyway now our devices are undergoing a forensic investigation. I guess they are copying the data off our phones and computers and going off that. My question is how does that work and can they get those supposed messages from the computer or phone when they were "sent and deleted" over a year ago?