Latex printing on Mirror sustrait

Hello, I was asked today by a customer about printing on “One way” Mirrored film, I’m not aware that such a product exists. The reason is for Security, It’s a part of an ER room at a Hospitol where they require one way visibility for security personnel to quickly gage a situation while also accommodating privacy, Rooms in both sides of glass are very brightly lit so perferated films are out, Also out are dusted films. Is there a Mirrored film that can be printed on ? Better yet a Security mirrored film that can be direct to print, Solvent, Latex or UV ?