Massachusetts General Laws
Chapter 134 - Lost Goods and Stray Beasts
Section 7 - Taking Away Stray Beasts Without Paying Lawful Charges

Section 7. Any person who takes away a beast taken up as a stray, without paying all lawful charges in relation thereto, shall forfeit to the finder double the amount of such charges, but not more than the value of the beast at the time of such taking away.