Is There a Constitutional Right to Audit Source Code?

Many people in the tech community have sounded the red alert klaxon over the FBI’s recent demand for Apple’s assistance in rewriting its proprietary iOS software to disable certain security features. In some corners, Apple is portrayed as a champion of individual liberty against the growing police state. But suppose we change the parameters of the legal scenario. Instead of the FBI demanding a backdoor to access an accused criminal’s iPhone, let’s say a defendant charged with murder has reason to believe that the victim’s locked device might contain exculpatory evidence.