Check this...

I suppose you might require this information in other places too..

Hence, store this information in session while you are logggin in..

ie

Session.Add('LoginUser'Type') = "User"    /       "Officer"

After logging in check this...and redirect to appropriate page

if(Session.Item["LoginUserType"].ToString() == "User")

   Response.Redirect("UserPage.aspx")

else

   Response.Redirect("OfficerPage.aspx")