TMZ now knows what was on Derek Chauvin‘s hand … he wanted to make sure he had his lawyer’s phone number in case he was convicted and sent directly to jail.

Chauvin’s lawyer, Eric Nelson, tells TMZ, his client wrote the number ahead of the conviction, because the convicted former cop knew if the jury found him guilty of second-degree murder he’d almost certainly have his bail revoked and he’d be remanded to custody.

Chauvin clearly knew given his former profession, he would have limited access to a phone but would be allowed to call his lawyer … thus the scribble…