How do i know which jail my friend is in?
414047
i am pretty sure you can call the jails and give them his name and find out if he is there.  At least you can do that here in Oklahoma, not sure about Canada.
1157872
Call the jail, and ask for central booking.  They will tell you if a "name" is listed on the register.
366128
If you know what state he is in, you can try calling the different prisons in that state. Or if you know what prison he is in, you can just call that one and ask them the rules about calling or coming to visit him.
115142
you can find that directly from the jail the person is in.
241214
You can go to the Federal Bureau of Prison's site at:\nwww.bop.gov. There is a federal inmate locator tool at that site.
216184
use 411. Call them up, ask for Colorado County Jail or whatever city they may be in. They should be able to give you a listing under the county jails. Call and ask if, "so & so" is incarsurated and they will tell you if they are there or not.
1047319
It all depends on where you are.  First check to see what county it is in and check the Superior Court website (court may be called something else).  Then check if available the court calendar and minute entries.  The minute entries will give you more detailed information.  \n\nIf the person was sentenced to jail (less than 1 year) you can check at the county sheriff's office for more information.  If the person was sent to department of corrections (prison) check the state d.o.c. website.
1184720
Check online. at whatever state, check their department of corrections online. You can search it!
246975
if they're in prison, go to the department of corrections site for that state...or county jail whatever the case may be.  It will tell you what they're incarcerated for and any related priors.  For a full background check, normally you have to pay $$ for it.
757693
call the jail they will tell you
41097
If he is in prison already then it wont matter if he tells you what he is in for. They already know, they put him in there. The only way that will make a difference is if there is more to the story than he wants them to know. You can find out why hes in there according to the court records by searching the california court district court records which are public knowledge and free to browse. One surefire way is to go to the local courthouse in that area and ask to see the court records for that county/area and give his name. They will charge you for copies in the pennies. Also you may be able to do a search to find the official california district court records site. There will be some that will try to charge you. Dont pay there is a free one out there somewhere. It might be hard to find though. In Oklahoma the site is odcr.com "oklahoma distric court records.com" I dont live there anymore but thats what it is and I know that every state has one. You will find a link similar to offender lookup or violator info and click on it to type in and search names.
904638
If the offender is in state prison, knowing their DC# will make the process easier. \n\nThe link provided is the Offender Search database for the Florida Department of Corrections. You can enter the name, age range and other information and search through the results.
616936
the answers given so far are the best way. If you can not call person home, call the branch of law enforcement whom you think arrested this person. If that is not feasible either you can look to see if the county has a website and check there. My county does have one and they post every day who is arrested and what for. Also the police here have one too.
1028183
Call the jail and ask if they are in there.
1107834
Depends on the jail and who you want to see.  Call the place and just ask.
184842
Call the Clerks Office where the inmate has charges.  Usually that info is public info.
185612
If he is a federal inmate then you can go to the Bureau of Prisons and use their inmate locate to see the most recent information about them, including their release date.  If it is a local or state inmate you would either need to call the facility they are at or find the facilities website on the Internet.