Originally Posted by
cxfan1960
Yes, you can. Security is before immigration. If you are stopped at the security, you can still get back to the check-in counters and see if they can give you an exception tag (I don't know if they will provide one to a SL), or check the monitor as luggage.
No he can't. At SIN T1, security is still done at the gate. CX has not moved to T4 yet.