In this case, several issues are raised. The 2 most important are the issue of cell phone record admissibility, and whether the Defendant’s statement that the trial court did admit was voluntary.
The appellate court ruled against the Defendant on both issues. This case is worth reading if you have a cell phone site case or if you have a case where the defendant requests a phone call which the police deny which leads to a statement.
The case is People v. Williams.
http://www.illinoiscourts.gov/Opinions/AppellateCourt/2017/1stDistrict/1142733.pdf