The 13-year-old was last seen by his family around 2.30pm yesterday afternoon (November 5) and they are understandably concerned.
It is believed he is either in the Basingstoke or Reading area.
Jamie is described as being white, around 5ft 4ins tall, of slim build and has short dark hair.
Officers are carrying out enquiries and we are keen to hear from anyone who knows where he is or has seen him.
Anyone with information can call 101, quoting the reference 44200429963.