Only the employing agency can answer this question for you, but probably not, especially if you discharged the bankruptcy according to the bankruptcy referee's instructions.
Yes, you can be arested for making threats against a law enforcement officer.
Any police officer or sheriff.
To be a sheriff you have to gain the experience as a police officer. Once you have been a police officer for some time you can apply for the job as sheriff.
A deputy
a sheriff, body guard, or a security officer(:
"Deputy sheriff" is the full job title of sworn line employees in a sheriff's department. They are usually addressed as "deputy," in the same way a police officer is addressed as "officer."
A peace officer subordinate to a sheriff.
A non paid officer
The County Sheriff
Sheriff - Deputy - Marshall .
In the United States, each county elects a "Sheriff". The Sheriff is the chief law enforcement officer of the county, and is also responsible for the carrying out of court orders and county tax codes. The Sheriff delegates his (or her) power to the "Sheriff's Office" (which is similar to a police department).
Policeman sheriff Fireman Security Guard Correction Officer