Many people who are arrested on drug charges are simply charged with possession. Maybe someone had a few painkiller pills that they did not have a prescription for, or maybe they had a small amount of marijuana products that they purchased illegally. When it appears that they only had enough for personal use, then they are typically going to face possession charges.
But the quantity of the drugs is very important. If they have a higher quantity, it is more likely that they are going to face charges for drug distribution or drug trafficking. The quantity plays a role because the police will determine that the person has too much for personal use, so their intent must have been to sell the drugs or transfer them to someone else.
Are these more serious charges?
Yes, drug trafficking or distribution can be vastly more serious than simple drug possession. In some cases, it could even change the charges from a state crime to a federal crime.
This is especially true if the person crosses state lines while they have the illegal substances in their possession. Crossing state lines while committing a crime means that the federal government has jurisdiction, so someone could face federal charges rather than just state-level charges. Someone who is accused of moving significant amounts of illegal substances across state lines could face very severe penalties for interstate drug distribution.
These types of charges could come with a long-term prison sentence or significant financial fines after a conviction. That is why it is so important for anyone facing such charges to understand all their legal defense options.