identity seed reset in sql server

See more:

SQL-Server-2008R2

Step1: I have a table with identity(1,1) [RoleID] and [Description]
Step2: I have created storedprocedure to insert record that has inserted 5 records that is fine.
Step3: While insert the record no need to give RileID because that is identity column automatically inserted.
Step4: Here is my question
1 I have to rollback (Delete recent record which is RoleID =5)
2 That has deleted fine
3 If i want to insert record again that record should be have RoleID 5 which is already inserted and deleted from that table.
4 how to do this in sql server.