The person who is the ""key link between the police and the courts"" because s/he considers the facts of the case and decides whether there is probable cause to believe an offense was committed is the.

Prosecutor

Explanation:

The prosecutor is the legal party responsible for presenting the case in a criminal trial against an individual accused of breaking the law.

The roles of the prosecutor are to investigate crimes, to decide whether or not to instigate legal proceedings on the suspected offender,  and to appear in court. The prosecutor decides whether there is sufficient evidence to bring a case to court. At the law court,  he or she questions the suspect, the witnesses and the counsels in order to establish that the suspect is guilty.

explanation:

magic