article_snippet: There were a staggering 26 incidents on the M4, M40 and M25 in five days, according to detectives who have urged commuters to be vigilant.
article_snippet: Inspector Colin Clark from Thames Valley
article_snippet: The incidents all took place on the M25, the M4 and the M40 motorways across Berkshire and Buckinghamshire.
highlights_snippet: There were 26 incidents on  M4, M40 and M25 motorways in just five days .
  