The public defenders office is obligated to provide you with an attorney when you are at risk of an criminal prosecution that could result in incarceration and if
you still qualify for a PD.
In some special circumstances you can be assigned a public attorney but you have to have reason and must request one. The attorney that represented you is not at
your beck and call like a retained private attorney would be.
So, at the moment the attorney that represented you has no obligation to you. The portion of your journey he was engaged for is complete and he was discharged.

