Mass. Gen. Laws » Part I Title XIX Chapter 128A
Massachusetts General Laws

Mass. Gen. Laws ch. 128A, § 13B (2026)

Use of drugs to affect speed of dogs or horses

✓ text as last checked Sept. 2026 (this copy records no edition or section history)
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[ Text of section effective until December 15, 2027. Repealed by 2011, 194, Sec. 39. See 2011, 194, Sec. 112 as amended by 2014, 165, Sec. 192; 2016, 176, Sec. 12B; 2017, 56, Sec. 14; 2018, 159, Sec. 14; 2019, 47, Sec. 14; 2020, 1, Sec. 14; 2020, 106, Sec. 14; 2021, 27, Sec. 14; 2022, 128, Sec. 14; 2023, 26, Sec. 20; and 2025, 73, Sec. 73.]

  Section 13B. No person shall administer or cause to be administered any drug, internally or externally by injection, drench or otherwise, to any horse or dog for the purpose of retarding, stimulating or in any other manner affecting the speed of such horse or dog in or in connection with a race conducted under the provisions of this chapter. Whoever violates this section shall be punished by a fine of five thousand dollars or by imprisonment for one year, or both.

Notes of Decisions
Cited in 3 cases, 1975–1980 · leading case: Commonwealth v. Nelson, 346 N.E.2d 839 (Mass. 1976).
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Commonwealth v. Nelson, 346 N.E.2d 839 (Mass. 1976). · cites it 4× “, William Barnoski, Salvatore Macarelli, Anthony Ciulla, Barnum Sardonis and Robert Byrne, charging each with the crime of conspiracy to violate G.L.c. 128A, § 13B (as appearing in St. 1958, c.”
Commonwealth v. Nelson, 323 N.E.2d 752 (Mass. App. Ct. 1975). · cites it 2× “63609) for conspiracy to violate G. L. c. 128A, § 13B (as appearing in St.”
Martinez v. State Racing Comm'n, 410 N.E.2d 740 (Mass. App. Ct. 1980). “G. L. c. 128A, § 13B. The State Racing Commission (Commission) enacted rule 515, promulgated as 205 Code Mass.”
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