All right guys - sorry for the delays - I've trying my head around the matrix chase rules. I've really wanted to have them implemented, and even though I have few ideas on how this should work WITHIN the current ruleset. it's taking too long to get it done.
as of now, we'll keep to standard rules.
you can trace the data, program, agent, sprite or persona icon and by that you get it's orignating node's access_id and location.
The roll for that is computer + trace - target's stealth (10 + proxy/anonymizers, 1 Complex action)
Sleuth rating 4 have 8 dices on track - 3 dices for Squirrel stealth give you the trace result in less than 10 seconds.