On December 9th, 1967, The Doors performed at the New Haven Arena in New Haven, Conneticut.
Accounts vary as to what motivated Morrison, but it is generally agreed that he launched into an extended rant in which he belittled the New Haven Police Department. The police invaded the stage, arresting Morrison and dragging him away, abruptly ending the concert. In response, the crowd rioted while the police booked Morrison on charges of indecency and public obscenity.
This incident helped to solidify Morrison’s reputation as a counter-culture hero and spokesman to his fans, and as a petulant drunkard to many others.
By KRLA Beat/Beat Publications, Inc. – KRLA Beat page 10, Public Domain, Link
As mentioned in:
Peace Frog — The Doors
Morrison Hostel — This Is Serious Mum