Pro-marijuana activists in Massachusetts have already succeeded in paving the way for medical marijuana dispensaries and decriminalizing possession of small amounts of the drug.

Now activists have set their sights on the full legalization of marijuana for adults.

As they have in the past, the activists are again hoping to make their case directly to voters.

The group Bay State Repeal says it's already taken steps to put the legalization question on the 2016 ballot.

The group is first planning to test different versions of the measure by placing nonbinding referendum questions on next year's ballot in about a dozen state representative districts.

Not everyone thinks legalizing marijuana is a good idea. Critics argue it can lead to harder drugs and make it more difficult to get treatment.

[Associated Press]