No. The published crime rate sits about 73% above the wider Lewes district average, which is a real gap and not a rounding error. About 124 incidents per thousand residents over the last twelve months. Around 1,760 incidents in total. The town is the urban node inside a mostly rural district, and the comparison frame is doing as much work as the crime itself.
The headline rate is around 124 per thousand. The Lewes district figure it is compared against is about 72 per thousand. The gap is real, and the gap is the data, and two things follow from it that pull in different directions. Lewes district is geographically large and mostly rural. The South Downs villages and the smaller settlements are not where the incidents happen, but they sit in the denominator that lowers the district average. A coastal working town sitting inside a rural average will always look worse in that comparison, by definition. The same arithmetic would make any urban hub of any rural district read broadly the same way. That arithmetic does not vanish, but it does need stating. Without it, the headline reads as Newhaven being uniquely problematic. With it, the headline reads as Newhaven being the part of the district where the people are, and therefore where the rate concentrates. Knowing all that does not make 124 per thousand stop being 124 per thousand. The rate is what it is, and the buyer who chooses to live here lives with it. The total reported volume of around 1,760 incidents over the last twelve months covers everything that gets reported and categorised in published police figures, from the visible and serious through to the lower-level disorder that produces most of the count by volume. The published numbers do not tell you which streets carry which kinds of risk, which times of day are worst, or how much of the rate is concentrated in a handful of locations versus spread evenly across the town. Different parts of the town will read very differently to each other. The map matters more than the average. Anyone planning to buy here should walk the specific street at the times they would actually be walking it, look at where the rate concentrates on published police mapping, and ask the question of someone who has lived there before treating any headline number as the answer.
Newhaven is not a quiet middle-class commuter postcode and the data is honest about it. The safer streets are real, and the rougher streets are real, and the average covers both. The risk is in believing the headline either way.