File: contracts\ustb\UStb.sol
176:             ) {
177:                 // redistributing - mint
+                } else if (
+                    !hasRole(BLACKLISTED_ROLE, msg.sender) && !hasRole(BLACKLISTED_ROLE, from) && to == address(0)
+                ) {
+                    // burn
178:             } else if (
179:                 !hasRole(BLACKLISTED_ROLE, msg.sender) &&
