The search for missing teenager Jay Slater has sparked a “parallel investigation” by Spanish Police, as the hunt for the 19-year-old reaches its tenth day. The Lancashire teen went missing more than a week ago on the island of Tenerife, after telling a friend he was going to walk back to their accommodation as he had missed the bus. Rescuers have now brought in specialist search dogs from Madrid, as they continue to comb the rugged mountain terrain where he was last seen for clues. Speaking to GB News, journalist Gerard Couzens claimed that the team investigating the case has “no plans to end …