The Florida Dept. of Corrections still uses Smith 38's for basic issue handgun. It is the basic sidearm and when I worked there (mid-90's) every officer qualified with it yearly. Most were heavy barrel model 10's with the pachmyer grips but sometimes they would bring out the old skinny barrels and wooden grips. I remember seeing a model 15 once. The special units (k-9, CERT, full time transport) were issued 5906's after a three day crossover, but they are some institutions that have M&P 9's.

The academy I adjunct at uses Sig 226's (going to Glock 17's soon) for basic firearms training, then familiarizes with Model 10's. Most of the students end up liking the 38's after firing them.