But police agencies appear to be focusing an increasing amount of their resources on drug rings dealing with other substances.
Note the recent breakup by the Pueblo County Sheriff's Office and other law-enforcement groups of a drug-trafficking operation with alleged links to a Mexican cartel — the conclusion of a months-long investigation that led to multiple seizures of methamphetamine, plus cocaine and heroin.
That was followed by a Denver grand jury's indictment of Edgar Barroso and sixteen others in what's been described as a violent meth ring that is said to have engaged in kidnapping, sexual assault and more.
The latest? The 17th Judicial District DA's office has formally charged sixteen people in what it calls "a cocaine distribution organization operating in Denver."
Also allegedly being trafficked: prescription drugs.
Four defendants have been accused of racketeering and operating a criminal enterprise under the Colorado Organized Crime Control Act (COCCA). They include Arturo Valenzuela, seen at the top of this post and in the following Facebook photo....
...as well as Carol Nieto, pictured here....
...plus Cynthia Orozco.
A fourth defendant also charged under the COCCA statute is not being named at this time and is listed as "at large" — one of two people to be so designated.
Fourteen others are in custody, including Orozco, who's been charged with one count of COCCA racketeering, one count of COCCA conspiracy, three counts of conspiracy to distribute, and nineteen counts of controlled-substance distribution.
Nieto, for his part, faces one charge apiece of COCCA racketeering and conspiracy, plus four charges of distribution or conspiracy to distribute a controlled substance. And Valenzuela is looking at one count apiece of COCCA racketeering and conspiracy and fourteen counts of distribution or conspiracy to distribute a controlled substance.
Right now, Orozco and Valenzuela are being held on $250,000 bond, while Nieto's bond amount is $25,000.
The DA's office says the operation was being run out of homes in Thornton, Commerce City, Lakewood and Arvada, with the criminal charges focusing on the time period between September 2015, when the investigation began, and this month. Among the items seized: more than a half-pound of cocaine, plus $30,000 in cash, "large amounts" of unspecified prescription drugs, and assorted weapons.
One word not mentioned: marijuana.