How to retrieve text messages without backup from iMessage
I have some very important text messages in iMessage that I need. I don't know how to retrieve them. I'm not a technical savvy person. I haven't done a backup in a very long time, and I have 99% of my iCloud storage used up. Some of my deleted text messages show up on my iPad on the system's standard messaging program. But not from the phone number that I need. Please, is there any way I can get these text messages back? Or shouldn't the police be able to retrieve them if I give them my phone? The detective told me yesterday that they couldn't bc the phone companies don't store that info. But can't they use software to get it directly from my phone?
iPhone SE, iOS 10.3.1, I also have an old model iPad