CENTENARIANS and children younger than ten are the among the hundreds of people placed on a council cautionary list for North Yorkshire, figures reveal.

Troublesome and potentially violent people are among those placed on council lists to warn workers to be vigilant when contacting them.

A study by the Press Association (PA) has revealed that 608 North Yorkshire residents’ names have been flagged up.

Surprisingly, four of these are aged over 100-years-old, and six children under ten appear on the list for North Yorkshire – with the youngest not even being one year old.

This is according to figures obtained by the PA via Freedom of Information requests to councils across England.

A spokesman for North Yorkshire County Council explained why people are placed on caution lists.

He said: “There are a number of reasons for keeping a list of households that council workers who make visits should be alerted about: these reasons might include safety hazards in the home, dangerous pets, history of violence, racist or homophobic behaviour etc.

"The county council makes every effort to support the needs of its clients and in doing so it also has a responsibility for the safety and wellbeing of its staff.”

The City of York council held 441 entries in their Staff Warning Register, of which more than one in three were under multi-agency public protection arrangements.

40 people had notes against them saying “aggressive or threatening in person”.

Meanwhile in Newcastle, some 33 people were recorded as being excluded from all of the city’s libraries and customer service centres, of which 31 were male.

A further 648 “potential risk indicators” against people were recorded under the local housing management organisation.

In one case, a three-year-old was logged under a category one assault meaning “where there was an actual or attempted assault”.

In separate entries for Newcastle councils, an eight-year-old and a 98-year-old were on the list for a category three assault, described as “where verbal/visual or social media abuse was directed personally at an individual” or where a client “has been known to misinterpret information given”.

Cumbria council has 2,924 people on its system, with the overwhelming majority being violence-related records.

More than 250 were for a dangerous animal.

Other examples of people appearing on lists across the country included a resident of Haringey who contacted their council roughly 20-times a day to make "random allegations" about staff.

Figures were not available for County Durham or Teesside.