I would have thought there would be another series. If not bad ending. Bancroft needs to be caught and surely she will not let the policewoman live that she shot.
I also enjoyed the series and actually thought it a very apt ending. Not all criminals get caught. Though i also believe that it is open for a 2nd series - not sure whether or not i'd welcome a 2nd one.
You're partly right, Crissa, but there is only four episodes
"This mini-series was originally scheduled to be broadcast on the ITV Encore television channel in 2018. However, problems with another ITV mini-series, Hatton Garden (2017), caused the broadcaster to bring forward the broadcast of Bancroft to December 2017 to replace the other series"