Extra officers have been drafted in to target disorder, violence, anti-social behaviour and public drinking this weekend.
As temperatures are set to soar, thousands are expected to flock to the city centre to enjoy the four-day break.
Senior officers are expecting a busy weekend sparked by booze and warm weather.
Chief Inspector Alan Porte, said: "We want to people come and enjoy everything the city centre has to offer on a bank holiday weekend.
"The vast majority of people will enjoy themselves and have a good time.
"However, if the minority do drink too much and cause trouble, we will be there to stop them."
Police vowed a "zero tolerance" approach to anyone is involved in violence and disorder.