My focus is starting intermittently when trying to start you hear one click and it doesn't start at first i thought it was battery but it has been in a garage and its come back that the battery,starter motor and alternator are all fine.

 

It has turned over when you apply a booster pack or jump start and also it has started once when i just used a negative cable from the negative terminal to the engine block which lead me to think that it was the negative terminal wire with the stop/start sensor on but then I tried that again today which didn't work so had to be jump started.

Just wondering if anyone has experienced a similar event or has a solution to my problem TIA.

You could try replacing the starter switch.i believe they can be an issue. Or try bypassing it first to confirm its the switch. 

When the car jump starts, are the jump start cables being used in the normal way or are they bypassing parts of the starting system? 

If being used in the normal way it would confirm parts of the system, starter switch, relay, solenoid, starter motor are all ok and point more towards battery/earthing issues.

Hopefully someone will come along soon with more electrical system knowledge.