SEGOPOLO PETRUS KOPI
I don't remember I left the office or what time he phoned because those things happened a long time ago.  That's why I made an example of saying, if he would see me at 12 o'clock or half past 12, I don't remember the time correctly.  That is why I made an approximation of saying I stayed in the office 30 to 35 minutes, then that's why I suppose to leave to see the informer.