Peeking at roommates through hidden cameras

Technology works in strange ways, it can assist criminal activities by misuse of available technology. For example, the technological drive towards making things smaller makes it far easier to conceal cameras in inconvenient ways. So, camera phones are now banned from a lot of gyms and public swimming pools.
In another incident, a voyeur placed a small camera concealed in a shampoo bottle inside a bathroom used by female roommates so as to be able to take pictures and videos of them when they were undressed. He was caught only when another roommate got curious about the shampoo bottle and noticed wires trailing from the back (does that mean if he used a wireless camera, he would never have been caught ?). When police were called in to investigate, they found the wires eventually leading to another roommates TV.
Now the fellow is sitting in jail with numerous charges on him. However, what he has done will make the other roommates more paranoid, and far less willing to trust someone or share with another person. Such invasion of someone's privacy and betrayal of trust needs to be severly punished.