Exclusive coverage on Sushant case: What possible charges can be put against Rhea?

Watch the exclusive coverage of the Sushant Singh Rajput death case here. Rhea Chakraborty reached DRDO guest house in Mumbai and the CBI team is grilling her from over 1.5 hours. 
If Rhea is found guilty, what possible charges can be put against her? 
Understand in this report. 

Among other things, the CBI team is likely to get her version of Sushant's mental condition; their Europe trip on which she has made several claims of his health and others.