To start off, you will lose any product you have in the hideout. ANY product. You will lose all materials used to make it.

If it is your first time, you will hear eddie / marcus warn you about a militia helicopter landing and telling you to leave asap.
The raiding process is different from DDS1, where you get a full minute to think about what to do. In dds2, you barely get 10 seconds. I counted 8 sec in my raid.

The best thing to do if you dont have many drugs is to just RUN . It is not worth it to try stay / fight them off because they WILL out gas you and they do insane damage.

On the other hand, if you have alot of product you need to quickly chose which to save as if you have 3 different types of drugs you wont have time to save them all.

There is a way how you can save all of them, but that requires you to have a moped / vehicle which allows you to fast travel. I was able to delay it till theyre about to barge in. I ran out the window and got on my moped and fast traveled to my other hideout.

The aftermath is not severe if you moved the majority of your product out with you or didnt have anything in there to begin.

There are 2 key things which influence your chance of getting raided.

1: YOUR EXPO LVL

What i mean by that is the text that appears at the top of your screen. "Wanted, Suspect, Person of interest". The higher it is with the highest being "wanted", the more dangerous it is. With the expo lvl "wanted", its 100% chance of getting raided.

The other stat is hideout visibility

You can see this inside ur hideout at the bottom left of ur screen.

You can lower it by getting window shutters from the ginger dude in slavs bay near the dude who sells cars (mechanic)