The Metropolitan Police Service is urging members of the public to use the 999 emergency number sensibly over Christmas, traditionally their busiest time of the year.
To encourage people to use the number sensibly, they will be releasing four calls made over the last year which did not require a police response, including a report of a dead squirrel
The Met received 25,749 so-called 'nuisance calls' last year and have received 18,333 nuisance calls so far this year.
More top news
The mayor said a post-Brexit visa system was needed to maintain the supply of skilled migrant workers for London's economy.
Peter Barnett made hundreds of trips from his home in Oxfordshire to Marylebone station without paying the full fare.
Police say he may have attacked more children and urged them to come forward.