Five children were recovered and 26 adults arrested during a crackdown on sex trafficking and prostitution last week.
The two states asked to be added as plaintiffs this month in a case being considered by an appeals court in Denver.
The purchasing limits were established in 2013 to prevent marijuana diversion out of state.
Police say her 19-year-old son jumped from a third-floor window after eating a pot brownie she gave him.
A Pueblo West couple and their adult son were arrested in the largest illegal home grow found so far in Pueblo County.
Denver's 4/20 rally has been rescheduled for Saturday, May 21.
A measure to place caps on marijuana grows and stores passed the Denver City Council after weeks of debate.
Pueblo County authorities have busted their 11th suspected illegal marijuana grow in one month.
All the measures await final, formal votes before heading to the Senate.
In previous years, thousands of people have gathered in Civic Center Park on April 20, but this year the plans are a little hazy.
Bill would ban pot products shaped like a human, animal or fruit.
Denver 4/20 organizers are now hashing out a plan for an even bigger celebration in June or July.