Yes the parcel is in our company store but my colleague opened it when he received it from courier and he is not working with us. Now as I am the in charge so this is the matter of my concern because in our company store, there is an access to other employees.

If u didn't open that box and it's just in your store just dont do anything with that box. Leave it as it is. As you have told your higher officers and they didn't take any step