A tradesman who pointed a laser at a police plane from his backyard said he was trying to shoo it away so he could get some sleep. Wayne Wiggins pleaded guilty at Parramatta Local Court on Wednesday to an act with intent to prejudice the safety of an aircraft. Wiggins, 46, pointed the light at a PolAir 8 chopper from his home in Toongabbie in Sydney's west at midnight on April 21. Police alleged the act could have been fatal as two officers suffered temporary blurred vision. 'I was sleeping and just the contact buzzing of the plane which I had no idea which was the police, I just did it as a deterrent so I could go to sleep,' Wiggins told 7NEWS outside court.