Here is the opinion in Abdow v. Attorney General (Mass. Sup. Jud. Ct.).

We posted links to briefs here.

An excerpt:

The issue presented on appeal is whether an initiative petition meant to prohibit casino and slots gambling and abolish parimutuel wagering on simulcast greyhound races meets the requirements set forth in art. 48 of the Amendments to the Massachusetts Constitution and, therefore, may be considered by voters at the November Statewide election. The Attorney General concluded that it did not and, accordingly, declined to certify it for inclusion on the ballot. The plaintiffs, ten Massachusetts voters who submitted the proposed initiative for certification, filed a complaint challenging the Attorney General’s decision and sought an order requiring the Attorney General to certify the petition. We conclude that the Attorney General erred in declining to certify, and grant the requested relief so that the initiative may be decided by the voters at the November election.

The Supreme Judicial Court of Massachusetts will soon decide whether a state-wide referendum to ban gaming can go forward.

Here are the briefs in Abdow v. Attorney General (Mass. Sup. Jud. Ct.):

Interveners-Appellants Sarno Brief	Intervener-Appellants Rizzo Sub Brief
Interveners-Appellants Ducharme Brief	Appellants Abdow Brief
Amicus Public Health Advocacy Brief	Interveners-Appellants Ducharme Suppl Brief
Plaintiffs-Appellants Abdow Reply Brief	Interveners-Appellants Sarno Reply Brief
Amicus Greater Springfield Brief	Amicus MA Building Trades Brief
Appellees Attorney General Brief	Amicus Revere Interveners Brief
Amicus MA Competitive Partnership Brief	Amicus Stop Predatory Gambling Brief
Amicus Affiliated Chambers Brief	Amicus Council Of Carpenters Brief
Amicus Town Of Plainville Brief	Amicus Coalition Of Citizens Brief