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Why do published collision numbers differ between the Police and the County Councils or Local Authorities?

Although Devon County Council follow the Department for Transports Stats19 and Stats20 guidance relating to which collisions should be included or excluded within collision databases, the Police will keep hold of additional records so their statistics are likely to be higher. The additional collision/casualty figures tend to come from these types of collisions that we do not have records of:

  • collisions that involved confirmed suicide
  • casualties where death was confirmed to be as a result of a medical episode rather than due to the collision itself
  • collisions that occurred on private land e.g. caravan parks, garage forecourts
  • collisions that occurred within a car park

Also please note that the Police tend to report statistics on a financial year basis (April to March) where as we tend to release statistics based on calendar years (January to December).

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