A serial shoplifter, who was convicted at least 171 times, has been banned from all stores in Northumbria, North East of England.In a statement, Northumbria police described Tanya Liddle, 43, as a nuisance offender who plagued the area for decades and was arrested almost 400 times.“One of her latest offences was carried out on April 24, when she went into TK Maxx on Westmorland Retail Park in Cramlington and helped herself to £1,500 (almost R35,000) worth of bags before leaving with out paying or speaking to staff,” police said in a statement.Police added that due to her prolific…