By 1930 it had been decided to remove the last of the regular RGA detachments .
By 1930 it had been to close all of the batteries except the Examination Battery at Saint David 's Head , which the BMA assumed complete responsibility for operating .
By 1930 it had been decided to remove the last of the regular RGA detachments , and to close all of the batteries except the Examination Battery at Saint David 's Head , which the BMA assumed complete responsibility for operating .