Officers say they are want to speak to this male in connection with a petrol bomb which was thrown at a motorist in the Bogside on July 12 this year.
The device was thrown during six days of rioting in the city which had been orchestrated by dissident republicans.
A PSNI Foylw spokesperson said: “If criminals are happy to endanger lives they can expect to find their picture circulated and no stone unturned.“Someone knows who this is. As soon as we have the confirmed identification we will remove the video
“You can contact us on a dedicated number by phone or by text on 07584 337367
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“You can also contact 101 or anonymously through crimestoppers on 0800 555 111.”