The unprovoked body-check was caught on video and published to YouTube, spelling the end of a short career for the NYPD officer.
The case -- set to begin on Monday -- spotlights the growing prevalence of witness and surveillance video in law enforcement in an era of YouTube and cell-phone cameras. But the trial likely will also raise questions about whether such videos show the full picture.
Pogan's lawyer says the video didn't capture important pieces of the run-up to the incident.
Pogan has pleaded not guilty to charges including assault and falsifying business records.