Consider the following statements regarding the Bharatiya Nagrik Suraksha Sanhita (BNSS):

1. BNSS allows detention in police custody for up to 90 days, a significant increase from the previous CrPC limit of 15 days.

2. BNSS mandates that in cases with punishment of seven years or more, the victim must be given a chance to be heard before the government withdraws the case.

3. BNSS introduces the concept of trials in absentia, where an accused can be tried and convicted even without being present in court.

How many of the above statements are correct?