I believe it's been stated that various Imperial systems are able to detect a ship approaching or at least translating into their system. If this is true and can indeed be done, how would it be done and what would be needed?
1) Strait up psyniscience seems incapable of preforming such a task as psykers usually can't tell you if there's been a warp breach two continents over much less an AU away. So, what kind of personnel would be needed to sense this and would they need any special equipment?
2) What range would such individuals and/or equipment have?
3) Would pirates, say the pirates of Inequity be able to do this and, if so, would they routinely set up such watchers in systems that attract any kind of traffic or do they just piddle about hopping to randomly run into anouther ship out there in the void (kind of like hopping to find a needle in the Sahara)?
4) Would other Imperial or Pirate ships be able to detect other ships translating from the warp into real space and, if so, what kind of specialized personnel would they need for such a task if any and what kind of range would they have?
Sorry for this deluge of questions, but in setting up this weekends game, i came across a situation where answers to these questions would be very helpful and a lot better then me just making things up that work for the story then finding that I've opened some kind of Pandora's Box with repercussions i hadn't thought of.