There are various methods for evaluating and identifying a tree's hazards/defects to minimise the risk to an acceptable level. Andrew Phelps is a Representative of Registered Licensee Phelps Associates using the principles and applications of the 'Quantified Tree Risk Assessment System'. (Licensed user No 1887)

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Among the hazards that may be associated with trees, their capacity to fall on people or property is perhaps of the greatest concern. Mechanical failures in trees are often attributable to recognisable 'defects', but even an apparently sound specimen can fail if the wind is exceptionally strong.

There are various methods for evaluating and identifying a tree's hazards/defects to minimise the risk to an acceptable level.

Under the Occupiers Liability Acts 1957 and 1984 the 'occupier' of a site has a duty of care to take steps which are 'reasonably practicable' to minimise the risk to people and property resulting from trees on a specific site. This duty extends to any person who comes on to the property or adjoining properties/land for any reason (including trespassers).

If concerns are raised such as cracks, fungal brackets or a warning from a neighbour, a Visual Tree Assessment may be necessary. These observations and recommendations of the "V.T.A" may identify that a more detailed "Qualified Tree Risk Assessment" is required. This will qualify the level of risk by identifying the target, the size of the part most likely to fail and the probability of failure.

Occupiers Liability Act
Under the current Occupiers Liability Act 1984, "the occupier" of a site has a duty of care to take "reasonable steps" to minimise the risk to people and property resulting from trees on a site. This duty of care extends to anyone who comes onto the property and adjoining properties for any reason - including trespassers.