Police have been forced to stand guard at illegal fly-tipping sites as Scotland is swamped by a rising tide of rubbish.There are growing calls for councils to re-open official dumps.A combination of extra household waste during lockdown and closed local dumps has sparked a dangerous fly-tipping crisis across the country.We have uncovered overflowing illegal fly-tipping sites – with a police van posted at one location to thwart the disgusting practice.The Scottish Government is facing furious calls to re-open tips to deal with hundreds of tons of waste, currently rotting in laybys, country lanes and even city streets.The Government is now in talks with local authority body COSLA on how to re-open sites with a regime of social distancing in