What powers can be exercised by an officer during valid search?

An officer carrying out a search has the power to search
for and seize goods (which are liable to confiscation) and
documents, books or things (relevant for any proceedings
under MGL) from the premises searched. During search, the
officer has the power to break open the door of the premises
authorized to be searched if access to the same is denied.
Similarly, while carrying out search within the premises, he
can break open any almirah or box if access to such almirah
or box is denied and in which any goods, account, registers or
documents are suspected to be concealed. He can also seal the
premises if access to it denied.