Officers from the Safer Travel Partnership are appealing for any information on these three people after a bus window was smashed.
The incident took place on the X1 bus on the Coventry Road in Sheldon between 3.35pm and 3.45pm on Sunday 29th January.
PC Shaun Hickinbottom, said: “Although no one was hurt, a nine-month-old baby narrowly escaped injury and it is clear that this incident could have been a lot worse.
We are currently appealing for anyone who recognises these three people to get in touch.”
If you have any information please contact PC Shaun Hickinbottom on 101 extension 803 6275 or firstname.lastname@example.org and quote crime reference number 20BE/20478D/17
Transport for the West Midlands, West Midlands Police, British Transport Police and Transport Operators make up the Safer Travel Partnership, which exists to make public transport in the West Midlands even safer.