The Threshold of Truth

Laura unhooked the chain and stepped aside.

Frank walked into the small home office at the back of the house. The room was simple: a wooden desk, a dual-monitor workstation, family photographs on the wall, and stacks of public works blueprints neatly filed in wire baskets.

Frank set his notebook on the desk and pulled a small diagnostic thumb drive from his pocket. He was old-school, but he had spent his last five years on the force learning digital forensic protocols from state specialists.

""Why are you doing this?"" Laura asked, leaning against the doorframe with her arms wrapped tightly around herself. ""Four hours ago, you looked ready to tackle him on our front lawn.""

Frank plugged the drive into the home network gateway. ""Sam said something in the interrogation room about his father's pension. Joe Hayes never lied to me in thirty years. When Sam looked at me, I saw his father’s eyes. If I put an innocent man in prison because I was too lazy to check the wire protocols, I won't be able to look in the mirror.""

The computer screen flickered, lines of network traffic logs scrolling down in green text.

Frank leaned in close, his finger tracing a line of hexadecimal timestamps. ""There.""

""What is it?"" Laura asked, stepping closer.

""A MAC-address spoof,"" Frank murmured, his brow furrowing deeply. ""The signal didn't originate inside this room. It was bounced through a high-gain wireless bridge stationed within two hundred yards of this house. Someone sat in a car down your street, intercepted your Wi-Fi handshake, and tunneled through your gateway while you were asleep.""