Using scanners for recording items bought and sold results in the collection of an enormous amount of information at low cost, permitting the user to plan and control at a detailed level.

使用扫描器作为被买而且卖的记录项目在低的费用造成巨大量的信息集合物件，允许使用者在一个详细的层次计划而且控制。

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Other possible reasons for under-recording suggested by the ONS include more low-level crimes being dealt with informally and outside the formal crime-recording system, with officers given greater discretion.

BBC: Fall in crime in England and Wales 'may be exaggerated'