Detroit Federal Scanning - Updated!

Here's what I've been finding active in Detroit the past few weeks. I'll be updating this list as I find more active frequencies:

162.2375, CSQ - Unknown
163.6250, 107.2 - DHS Customs and Border Protection
163.9875, P-25 - Encrypted, most likely FBI
164.3875, 110.9 - Probably US Postal Service truck operations
164.4000, P-25 - USSS Papa, Detroit Field Office?
164.6000, P-25 - DHS CBP or ICE
164.9625, CSQ - US Postal Service, referenced BMC (Bulk Mail Center)
165.1875, 123.0 - Unknown, mentioned FIRE units - Canadian?
165.2375, 100.0 - DHS Customs and Border Protection
165.5500 - Unknown, sounded like DES
165.9125, P-25 - Clear, probably ATF
166.5875, 100.0 - DHS Customs and Border Protection
166.7375 - Unknown
167.6375, 167.9 - FBI
169.0000, 103.5 - Unknown, simplex or repeater input
169.9125, 167.9 - Possible input to 170.8250 repeater
169.9500, 110.9 - Probably USPS, referenced "A Dock"
170.5500, P-25 - Encrypted, likely FBI
170.8250, 167.9 - FBI repeater
170.9500, P-25 - Encrypted, likely FBI
172.9000, P-25 - TSA
173.8000, P-25 - Clear but not enough traffic to identify
406.2250, P-25 - FCI Milan, MI trunked system
406.7000, P-25 - Clear, talking about score of Tigers / A's game
407.0500, P-25 - FCI Milan, MI trunked system
408.1000, P-25 - FCI Milan, MI trunked system
408.3250, P-25 - FCI Milan, MI trunked system
411.0750, ? - Strange digital mode, doesn't sound like DES, but not P-25
415.2000 - DHS Federal Protective Service
417.2000 - DHS Federal Protective Service
418.7500, 156.7 - DEA F3 aerial surviellance