Police took my iPhone 6+ how to erase my iPhone if they have it on airplane mode?

They are trying to charge me with harassment 2 counts because I threatened someone over the phone so I went to jail and they took my phone I have find my iPhone installed but they have it on airplane mode how to erase the phone if it has no Internet connection

Thats lame. I guess there's no way unless they connect it. Did you lock the screen?

You can't because you have no access at all. However if you get onto Apple.com you can erase it but it will only apply once you get it off airplane mode

You can't. They were one step ahead of you, and your carrier will backup any times that the text or calls match on you phone, the victims phone and both carriers text and or call logs.

Hope you have a good lawyer.