Re: CRIME Follow-up to my idea for helping law enforcement respond more eff ectively to life-threatening disappearances and abductions

From: Crispin Cowan (crispin@private)
Date: Wed Aug 28 2002 - 15:10:11 PDT

  • Next message: brvarin@private: "RE: CRIME Checkpoint versus Sonicwall"

    Michael Regan wrote:
    
    > I often find Crispin's comments informative and well thought out, but 
    > in this case I feel he is a bit off base especially when it comes to 
    > drug laws and search laws. 
    
    This is not the forum for a debate on drug laws vs. civil liberties. If 
    anything, they are relevant only as instructive examples of what happens 
    when law enforcement is given powerful authority without a lot of checks 
    and balances.
    
    Relevant to CRIME, I think it is important to keep that in mind with 
    respect to evidentiary rules for computer crimes. There are rather 
    strict rules on the handling computer forensic data: basically, don't 
    touch it. If you mess with it, then it isn't evidence any more.
    
    This is very inconvenient, but IMHO very necessary. Computer forensic 
    evidence is vastly easier to forge than physical evidence.
    
    Similarly, there is very good reason to require very formal search 
    warrants before e-mail & web traffic can be tapped for law enforcement 
    purposes. It is trivial to impersonate someone on the net; if someone 
    wanted me in jail, and warrants with good propbable cause were not 
    required to tap my web surfing habits, it would be very easy to fake up 
    a web log showing me downloading kiddie porn. You don't even have to 
    fake the logs: you just go download the kiddie porn, and spoof the IP 
    address so it looks like I did it.
    
    The probable cause requirement puts a barrier in the way of this kind of 
    malfeasance: law enforcement has to come up with some kind of reason to 
    believe I am doing nasty things before any evidence they gather that 
    suggests I'm doing those nasty things becomes valid.
    
    "It's a good thing." -- Martha Stewart :)
    
    Crispin
    
    -- 
    Crispin Cowan, Ph.D.
    Chief Scientist, WireX                      http://wirex.com/~crispin/
    Security Hardened Linux Distribution:       http://immunix.org
    Available for purchase: http://wirex.com/Products/Immunix/purchase.html
    



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