1075,
According to the database information, you are correct. Fire tactical groups are marked as "E", encrypted. But what's odd, at least to me, is that the Police groups are not encrypted, simply labeled as "D" for digital. Where encryption is in use, you also expect it to be on sensitive PD communications, like tacticals (SWAT), narcotics, surveillance, etc.
Regardless, no scanner, digital or otherwise, will receive any encrypted talk group or conventional frequency. Your 396, as you've probably experienced (if you've tried the system) should get the regular digital channels that are unencrypted.