Police want to speak to this man about a sexual assault on a bus in Walsall Road, Perry Barr, at between 5.20pm and 6pm on Wednesday 12 August.
It is understood a man was seen touching himself as he stroked the shoulder of a woman sat in front of him on the number 51 bus.
If you know who the man in the image is, contact police quoting crime number 20BW/192164P/20, via Live Chat at www.west-midlands.police.uk, 08.00 to midnight, or call 101 anytime.
Alternatively to tell us what you know not who you are, call Crimestoppers anonymously on 0800 555 111.