However, police said they expected the majority of fans to be well behaved and warned those who are not that they will face the “full force of the law”. The force urged people to plan their day in advance and drink responsibly.Chief Superintendent Brian McInulty said: “This is no doubt an exciting weekend for many people, whether it’s to enjoy a day of shopping at the sales, attending a football match, or gearing up to celebrate the New Year.”It does mean that the city will be busier throughout the day and night. Together with our partners, we have robust policing plans in place to account for this, with public safety being our priority.”Given the time of year, it would be expected that alcohol will play a part in some of the activities but I would urge people to drink responsibly, plan your outing in advance and ensure you stay with friends and family who know where you are. Expect to see more officers in and around stadiums, shopping centres, on approaches to Glasgow and in the city centre itself.”Much has been said about the Rangers v Celtic match taking place but I envisage that the majority of supporters will come and enjoy the game and leave safely. However, that small minority determined to cause disorder, anti-social or offensive behaviour will be met with the full force of the law.”The timing of the match has been criticised by Paul Waterson, chief executive of the Scottish Licensed Trade Association, who asked when the decision was announced whether those involved had taken into account the fact that Police Scotland reported that the number of calls concerning domestic abuse cases had almost doubled on the day the teams met in their Scottish Cup semi-final match earlier this year. Merchandise on sale at an Old Firm gameCredit:Reuters Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings. Police Scotland has insisted it has “robust” plans in place to ensure public safety as Glasgow prepares for the Old Firm match on New Year’s Eve.Fans have been warned they will be refused entry to Ibrox if they have been drinking alcohol, and extra officers will be on duty outside the stadium and in the city centre.The decision to hold the Rangers v Celtic match at 12.15pm on Hogmanay has been heavily criticised, with the Scottish Licensed Trade Association branding it “senseless” and “outrageous”.Supporters have also been warned not to indulge in sectarian and offensive behaviour inside the stadium.Following the last match between the teams in September, Celtic supporters were criticised for producing an offensive banner and dangling two blow up dolls wearing Rangers scarves, with their hands tied in the style of an execution.Video footage also emerged from the match of a toilet block in the “away” end being smashed up by visiting fans.About 50,000 people are expected to attend the game on the same day that large crowds are anticipated in the city centre to see in the New Year.