A person has been arrested and a case has been registered under Section 4 of PMLA (money laundering). The allegations involve concealment of the source of income and investing it in various properties. Under the PMLA, which statements regarding the burden of proof are correct? Statement 1: The prosecution must prove beyond reasonable doubt that the property is proceeds of crime. Statement 2: Once the prosecution establishes that property was not derived from legitimate known sources, a reverse burden is triggered, and the person must explain the source. Statement 3: The person can remain silent and cannot be compelled to explain the source of property. Statement 4: Even if the person proves legitimate source, the property can still be confiscated if proceeds of crime involvement is suspected. Which statements are correct?