Tachyon detection grid

• Defensive/sensor technology deployed along Federation border with Romulan Neutral Zone by 2369 (TNG: "Face of the Enemy"; TNG Short Story: "Turncoats")
  • First deployed in shipbound form during Klingon Civil War to detect Romulan materiel shipments to Duras-associated forces (TNG: "Redemption II")
• Relies on tachyon beam emissions interacting with tachyon fields emitted by late 24th century Romulan cloaking device designs producing detectable particle interactions
  • Functions to some degree against other similar cloaking device implementations as well, leading to tachyon sweeps as standard procedure for detecting cloaked vessels