Boris Johnson today urged members of the public to challenge people who litter and tick them off .
The Prime Minister said he abhors litter and shares peoples indignation at those who fail to tidy up after themselves.
The easing of lockdown rules has prompted a surge in the number of people meeting in public spaces for picnics and cups of coffee to catch up with friends and relatives.
But Mr Johnson said everyone must obey the basic laws of respect for other people after widespread photographs of parks being left covered in rubbish.
He also warned that the Government is increasing on-the-spot fines for littering.