Assistant Chief Constable Ryan Henderson said police consider the risk to the public "as low".
A total of 116 children and 28 adults were killed on 21 October 1966 when a colliery spoil tip collapsed.
Antisocial behaviour on buses in England could lead to fines while a new campaign is also being launched for trains.
A national campaign asking rail passengers "share the carriage, not the noise" is being launched.
The Duke and Duchess of Sussex are making several public appearances in Nottingham.
Scottish athlete, Archie Goodburn, who was diagnosed with three inoperable brain tumours two years ago, met Andy Burnham after an appeal for more investment into brain cancer research.
Investigations reporter NJ Convery has been out on a nighttime hunt for vehicle thieves.
