After a 12-week, undercover investigation, Windsor police report they have seized 850 grams of crystal methamphetamine valued at $170,000.

The department reports in a news release that one of the trends uncovered in the investigation is the presence of blue crystal meth, resembling that of the AMC TV show "Breaking Bad."

The seizure reportedly resulted in the largest meth bust to date by the Windsor Police Department.

"The investigation targeted street level dealers then moved up to mid level dealers who supplied large amounts of narcotics to the streets of Windsor," the department reports. "This investigation was successful, in that, it helped us gather a better scope of the illicit drug scene in Windsor.

"Officers were able to confirm that crystal methamphetamine has taken over as the most commonly abused hard drug within the city of Windsor."

In addition to meth, undercover officers were able to buy fentanyl, heroin, oxycodone and hydromorphone. The department points to the presence of fentanyl as one of the most "alarming" discoveries through the three-month investigation.

Bootlegged forms of fentanyl, a synthetic opioid, has made its way from western Canada into Ontario and Windsor. Fentanyl has been mixed with other illicit drugs such as heroin, cocaine and oxycodone, and comes with unpredictable results according to police.

"While important as a prescribed medication for pain management, the illegal use of the drug is very dangerous because its effects are unpredictable," the department reports. "Communities across Canada have seen a rise in deaths due to the misuse and abuse of Fentanyl. Figures in opioid related deaths in the Province for 2015 show that fentanyl was involved in 165 deaths across the Province."

See below for a rundown of all the drugs seized through four executed search warrants in Windsor. They represent an estimated value of $180,492:

850 grams of meth

Eight fentanyl patches

6 grams of fentanyl powder

105 oxycodone pills

3.6 grams of cocaine

0.3 grams of crack cocaine

129 MDMA pills 0.1 grams of heroin

7 hydromorphone pills

11.7 grams of marijuana

"In Windsor, it's now the drug of choice. Before we had a problem with crack cocaine," Windsor police Sgt. Frank Providenti said at a news conference, according to the Windsor Star. "It's still out there but not to the extent it used to be. Crystal meth is now easier to get and has a better bang for your buck."

Police say one drug dealer said make sure u cut this because it will kill people #cbcwdr pic.twitter.com/pwXgaAVi7t — Dale Molnar (@cbcmolnar) December 15, 2016

$180,000 worth of crystal meth and fentanyl sized. Biggest meth investigation by @WindsorPolice pic.twitter.com/ctf4XJPidx — Teresinha Medeiros (@tmedeiros800) December 15, 2016