Bring/press/prefer charges against somebody
Definition 1 of 3
Pro Tip 1/3Legal Action
Used when someone initiates a legal process for a wrongdoing, often criminal. 
They will press charges against the hacker who breached their systems.
Pro Tip 2/3Prosecutor's Choice
The phrase indicates the prosecutor's intention to take someone to court. 
The district attorney may press charges against the company for fraud.
Pro Tip 3/3Implying Guilt
Suggests that the accused is believed to have committed the crime. 
Despite the evidence, no one pressed charges against the politician.