Species selection of trees and shrubs should take account of their future maintenance,as poor maintenance can impact on site security. Providing climbing aids over boundaries or onto buildings.

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Planting is wrongly specified i.e. too tall, or poorly managed and overgrown therefore blocking surveillance. Visitors are provided no reassurance as they approach buildings. The operation of the CCTV camera is impeded by foliage from an adjacent tree. High hedging prevents both an overview and a view into the car park therefore making it to susceptible to criminal activity.

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The use of hedging plants and feature shrubs and trees, below 1 m should be used providing surveillance opportunities. Plant growth below 500mm may be required in respect to car parks to deter vehicle interference.

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The planting of new trees should be considered in tandem with the installation and the operational requirement of any specified CCTV system. Likewise, locate new trees so that they do not reduce directed light from lamps or provide climbing aids over boundaries or onto buildings.

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