The US does not spend extravagantly on police services. Expenditures on police were $240B in 2024 [1], or a little over 3/4s of a percent of GDP. This is actually a little less than the EU average of 0.9% [2]. The US spends a lot in absolute terms because it's a big country and a rich country where you have to pay people working in service jobs a lot.
[1] https://fred.stlouisfed.org/series/G160091A027NBEA
[2] https://ec.europa.eu/eurostat/statistics-explained/index.php...