(CNN)The fiancée of former New England Patriots star Aaron Hernandez has been granted immunity, compelling her to testify at his murder trial, according to a decision released by the trial judge on Tuesday. 

In early January, the fiancée, Shayanna Jenkins, met with Bristol County, Massachusetts, prosecutors in what court documents call an immunity meeting, but the results of that meeting are secret, even from the Hernandez defense team. 

"It allows the prosecutor to force her to testify in front of the jury without taking the Fifth" (Amendment against self incrimination), CNN legal analyst Paul Callan said of the order. "If she lies, she can still be prosecuted for perjury because a grant of immunity never (immunizes) someone against committing perjury on the witness stand." 

Hernandez, the former tight end who once had a $40 million contract, has pleaded not guilty to orchestrating the death of Odin Lloyd. He has also pleaded not guilty to weapons charges. 

His co-defendants, Ernest Wallace and Carlos Ortiz, have also pleaded not guilty and will be tried separately. 

Jenkins has been a regular at hearings for Hernandez. He has often been seen mouthing "I love you" to her. 

Jenkins is on the prosecution's witness list. It is not known whether her testimony will help or hurt Hernandez. 

"Normally, a fiancée is not going to testify adversely against her true love," said Callan, a former New York homicide prosecutor. But there is no privilege in Massachusetts allowing engaged couples to avoid testifying against one another. 

Prosecutors suspect Jenkins of following instructions from Hernandez to get rid of the murder weapon from their home by removing the gun inside a box, putting it in a black trash bag, and borrowing her sister's car to take the bag to a dumpster and throw it away. According to court documents, she doesn't remember where. Her sister was the girlfriend of the victim and has already testified against Hernandez. 
Who is the fiancee?
Who is she engaged to?
Which team was he on?
What position?
How much was his contract?
How did he plea?
Who was charged along with him?
What was their plea?
Will they stand trial together?
Who was murdered?
Who did his girlfriend meet?
When?
Was the meeting publicized?
Did the defendent's attorney know what happened there?
If she is not honest with what will she be charged?
Who made the statement about perjury?
What did he do previously?
How did she allegedly help her fiance?
Where did she dump the gun?
Who did her sister date?
Shayanna Jenkins
the fiancée, Shayanna Jenkins
Aaron Hernandez
fiancée of former New England Patriots star Aaron Hernandez
the New England Patriots
New England Patriots star Aaron Hernandez
tight end
Hernandez, the former tight end
$40 million
Hernandez, the former tight end who once had a $40 million contract
not guilty
Hernandez, the former tight end who once had a $40 million contract, has pleaded not guilty
Ernest Wallace and Carlos Ortiz
His co-defendants, Ernest Wallace and Carlos Ortiz
not guilty
Ernest Wallace and Carlos Ortiz, have also pleaded not guilty and will be tried separately. 
no
will be tried separately. 
Odin Lloyd
the death of Odin Lloyd
Bristol County, Massachusetts, prosecutors
n early January, the fiancée, Shayanna Jenkins, met with Bristol County, Massachusetts, prosecutors
In early January
In early January, the fiancée, Shayanna Jenkins, met with Bristol County, Massachusetts, prosecutors
no
the results of that meeting are secret
no
the results of that meeting are secret, even from the Hernandez defense team
perjury
If she lies, she can still be prosecuted for perjury
CNN legal analyst Paul Callan
CNN legal analyst Paul Callan said of the order. "If she lies, she can still be prosecuted for perjury
he was a New York homicide prosecutor
Callan, a former New York homicide prosecutor
by getting rid of the murder weapon
Prosecutors suspect Jenkins of following instructions from Hernandez to get rid of the murder weapon
a dumpster
take the bag to a dumpster and throw it away
the victim
Her sister was the girlfriend of the victim