Begin section explaining purchasing on open market

enforcement-case-studies.tex

@@ -293,6 +293,21 @@ embedded electronics product.  The product in question is
   investigates a potential GPL violation.  In this case, obviously, no
   violation was uncovered.}
 
+\section{Consumer Purchase and Unboxing}
+
+The process for copyleft compliance investigation, when properly conducted,
+determines whether users inclined to exercise their rights under a copyleft
+license will be successful in their attempt.  Therefore, at every stage, the
+investigator seeks to take actions that reasonably technically knowledgeable
+users would during the ordinary course of their acquisition and use of
+products.  As such, the investigator typically purchases the device on the
+open market to verify that distribution of the copylefted software therein
+complies with binary distribution requirements(such as those
+\tutorialpartsplit{discussed in \textit{Detailed Analysis of the GNU GPL and
+    Related Licenses}}{discussed herein \S~\ref{GPLv2s3} and
+  \S~\ref{GPLv3s6}}.
+
+
 \section{Root Filesystem and Kernel Compilation}
 
 * We found a CD included in the box that the ThinkPenguin TPE-NWIFIROUTER