BETWEEN 70-79 MPH
Home Office records do not show the number of
speeding offences recorded on motorways. However, at recorded
speeds up to 79 mph no prosecutions are likely given that ACPO
guidelines suggest a minimum enforcement threshold for prosecution
of speed limit plus 10 per cent plus 2 mph. This is 79 mph when
a 70 mph limit is in force.
When lower or temporary speed limits are operating,
correspondingly lower prosecution thresholds are used, but no
record exists for the number of prosecutions on motorways.