Police informers are individuals who provide information to law enforcement authorities regarding criminal activities. However, the term "police informers" can carry negative connotations due to the perception that they betray or "snitch" on their associates. Therefore, there are several synonyms that can be used to describe informants, such as "confidential informant," "informant," "source," "tipster," "whistleblower," and "cooperating witness." These terms emphasize the importance of informants in providing valuable information that can help law enforcement prevent or solve criminal activity. Ultimately, the use of alternative terminology can help to reduce the stigma attached to being an informant and encourage individuals to come forward with information.