Intelligence agencies and similar organizations can only install hacking software on one’s cell phone via a valid court order. So, without any permission from the courts, law enforcement cannot legally listen in on your conversations. Moreover, one of the phone call participants also has to consent to use a wiretap for spying on the conversation. If the police were to monitor the phone without a court order, they could be susceptible to charges of police misconduct. The thing is that, if you’re being wiretapped, the chances are that you won’t know about it. However, certain activities can signal that you’re being tapped, such as: Having unknown apps on your cell phone that weren’t installed by you Your GPS location is on even if you had previously disabled it. Weird sounds during phone calls or hearing voice echoes Unfortunately, today’s cell phones can be accessed via code, which wasn’t the case with older mobile versions. That makes it that much harder to detect.