It seems as though a Baltimore police officer forgot about one key feature of his bodycam: the fact that it saves the previous 30 seconds of video recorded before the camera is activated. Most bodycams record and dump constantly. The moment it’s activated, the 30 seconds preceding the activation become part of the recording.
What was apparently inadvertently captured by the camera was the officer planting drugs in a can and hiding them in an alley. All three officers then retreat to the sidewalk outside the alley before heading back in to “discover” the drug stash.