A client has asked me to trim his leylandi as his neighbour has complained. I understand that a new law has recently been introduced but does anyone know what the legal height the neighbour can now insist upon it being? I've not seen the trees yet but am led to believe that they are way taller than this. The only solution I can see is to get the hedge trimmers to the tops and lop off x ft from the top. If i do that are there likely to be any side affects to the growth of the trees.