Coke is commonly mixed with speed to make an eight ball. In this form it is extremely dangerous and heart failure is common if the dose is to high. People on coke can become very violent and posses great strength. I recall an incident in New York where a user was shot eight times in the chest with a large caliber pistol by police before he finally stopped coming at them. It stays in your spinal cord forever and has disastrous effects on your central nervous system.
Acid is blotted on small sheets of paper and is usually placed under the tongue.
They can not distinguish reality from hallucination. For all they know you are the boggy man trying to kill them with a toilet plunger. There effects and side effects vary about as much as there looks. Packaging, well about anything and anywhere. Depending on the chemical make up, the amount and circumstances, illegal possession of these can vary from a class 4 misdemeanor to a class 5 felony.