A new smuggling idea:
Some stations could have lasers which detect ships passing the door while being in silent runing and or very cold. A new equipment could be used to disable those lasers.
An equipment can be used to conceal the cargo while you are being scanned, this device could generate a lot of heat on the ship, this will allow to use big ships for this task.
If a police scans you, you could try to bribe him so he leaves you alone, this could fail.
Black Markets should work depending your "smuggling rank", the more you have the more BM you could know and receive better prices.
Your ship has an ID, if you have been cought with illegal goods several times, your ship ID is listed in a global "police list" and you could be chased through the galaxy until you change the ID or ship.
This will never happend: Cloack device, yeah that cool device which makes you invisible, it uses so much energy that all your non essential systems malfunction and shut down.
The simplicity of this game reaches unimaginable dimanssions.