Do trusted interfaces have any enrty in DHCP SNOOPING DATABASE?
user@switch> show dhcp snooping binding
DHCP Snooping Information: MAC Address IP Address Lease Type VLAN Interface ----------------- ---------- ----- ------- ---- --------- 00:00:01:00:00:03 192.0.2.0 640 dynamic guest ge-0/0/12.0 00:00:01:00:00:04 192.0.2.1 720 dynamic guest ge-0/0/12.0 00:00:01:00:00:05 192.0.2.5 800 dynamic guest ge-0/0/13.0