Police constable Mark Johnson, 39, was suffering from depression and obsessive compulsive disorder leading to him forgetting his dogs, 18-month-old Jay-Jay and Jet, 7, for seven hours on one of the hottest days of the year.

"Jet and Jay-Jay suffered excruciating pain when their handler Pc Johnson left them in the boot of his private motorcar," said Paul Taylor, prosecuting the case for the RSPCA charity. "Pc Johnson's usual routine would have been to have transferred them to a police vehicle which had an air cooling unit but he did not transfer them and went about his business," he told Nottingham Magistrates' Court.