​​(A recent Massachusetts case has brought attention to the growing haze of confusion around the state’s marijuana laws, as one high-profile case was thrown out when a judge said police cannot tell by smell alone whether an ounce or multiple pounds of pot are present. One ounce and under, of course, has been decriminalized in the state.

Repercussions from the case may mean that police are wasting their time using drug-sniffing dogs as the basis for pot arrests, according to an opinion piece from GateHouse News Service.