I'm looking for a picture of NYPD Officer Smolka's arrest of Lisa Kozlowski in Union Square during the 4/29/05 Critical Mass ride.
Ms. Kozlowski was straddling her bike and walking it out of the park when Ofc. Smolka grabbed and arrested her. The story is told here:
http://www.secondaryscreening.net/static/archives/2005/05/friday_bicycle_3.html
and here:
http://www.nynewsday.com/news/local/newyork/nyc-bike0509,0,2698538.story

I remember seeing a picture either in print or on the web of Smolka holding onto this woman, really yelling at her, surrounded by cops and other riders.