There are several bands called Decontrol:

1) From Saskatoon, SK - self-described as "raw d-beat fallout punk". They released a split with Final Massakre (Massakre Records), a self-titled 12" (Distortion Records), an LP entitled In Trenches... (Iron Bastard Records) and another LP entitled The Final War (Hardcore Holocaust). Their albums can still be bought today through a few distros and through Hardcore Holocaust.

Members were Chris, Jon and Shane.

http://www.myspace.com/decontrolcanada

2) 80s Philly hardcore.

Their self-titled album was released in 1987 on Hardly Records, and is made up of tracks 15 through 26 on the complete collection CD.

Adam Avery: Vocals
Richard Birch: Guitar, backing vocals
John Wolfinger: Bass
Chuck Yeager: Drums

3) Crust punk band from Kristinehamn, Sweden. Released at least two demos in the early 00's.

4) Punk band from York, PA. Circa Late 90's -early 00's. A few demos were released. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.