"All staff followed proper protocol and their actions were within policy," sheriff's spokeswoman Shari Ireton said Tuesday.
Leon Benjamin Moore, 41, of Snohomish, was booked into the jail Feb. 26. He had been arrested by Everett police on a warrant for driving under the influence.
Moore was found dead from a methamphetamine overdose in the jail about 10:30 a.m. Feb. 28. It is unclear when he ingested the drugs.
The incident is not expected to be reviewed by prosecutors because there was no finding of "a legal, procedural or policy violation," Ireton said.
Federal experts are expected to visit the jail in the coming weeks to review operations. At least seven inmates have died there in recent years.
More Local News Headlines
Tulalip fire death blamed on outdoor burning that spread Stanwood-area home destroyed by fire, no one hurt Lawmakers OK 11.9-cent gas tax hike in transportation package Fireworks danger rises with heat $385K settlement reached in deadly Broadway crash Project Homeless Connect unites people with services Monroe mayor and City Council members are getting pay hikes Lynnwood council candidates stress importance of community
Our new comment system is not supported in IE 7. Please upgrade your browser here.