If the police take a camera as evidence, do they use all illegal things on the camera as evidence or just the ones pertaining to the case?

I’m no expert, but I guess they will use your things to charge you with other cases at some other time. They won’t bring up the videos in your upcoming trial, but they will in some other trial for whatever is wrong with the videos, if that illegal thing is big enough for a trial.

They have the camera with them? Bad luck for you. Your family will know about it one way or another. Either accept your fate or find a really good lawyer.

They might cut you some slack. But, they might decide to add extra charges on. Just make sure you cooperate and aren’t screwing around then they might ignore them. Depends on what you mean by “illegal” though

You need a lawyer. The big question is what is admissible evidence; why do they have your camera?

Tell you parents you are worried about what may come to light; you don;t have to be specific about what the police may find, but tell them you need a lawyer.

The illegal thing is drug use, but I can pass a test now.

They would have to bring new charges against you. When you have a criminal case in court they don’t add on more and more charges. They obtain a new warrent and try those charges seperately from what you face already.
It is more real now, isn’t it? “If you can’t do the time, don’t do the crime.”
I’m sorry you face being embarrassed in front of your family, but this is a perfect demonstration on the perils of irresponsible behavior.

They will hit you with different charges later.
That is why you do not keep incriminating data on an unsecured device like a mobile phone.

This is a question you should probably ask your attorney.