Some pictures from the Metropolitan Police Museum Collection.  This is from a batch labeled November, 1969 but are of an as yet unknown demonstration.  One photo references the Justice Department.   Please note the “DC-US Route 240” sign in the background.

There is also a good picture that illustrates the bygone manner of processing mass arrests.  One officer is taking the suspect’s picture while another fills out the now defunct mass arrest form.

 

 

 

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