A 35-year-old woman has now been charged after a video was circulated on social media of two people having sex in Concert Square.
Kelly Cousins, 35, of Bradford, but currently residing in Bootle, has been questioned by police and charged with outraging public decency.
She was bailed with conditions not to enter Liverpool City Centre and will appear at Liverpool Magistrates Court on Tuesday 20 September at 1.45pm.
Enquiries remain ongoing to identify the male in the video and anyone with any further information is asked to get in touch.
Anyone with any information about this incident can contact Merseyside Police via their social media desk via Twitter @MerPolCC or Facebook ‘Merseyside Police Contact Centre’ with reference 22000564600.
You can also contact the independent charity Crimestoppers anonymously, on 0800 555 111 or via their online form at: https://crimestoppers-uk.org/give-information/give-information