"There's some big questions to be asked by the governing bodies of all the sports, not just cricket. I think this (attack) proves if cricket, which is the number one sport basically on the subcontinent, can get hit then any sport can get hit and especially any big sporting tournaments or the Commonwealth Games maybe," Bayliss told reporters in Sydney after returning to the country.

Six Lankan cricketers were injured while seven security officers were killed in the unprecedented attacks last week. Bayliss also joined Australian umpires Steve Davis and Simon Taufel and English match referee Chris Broad in blasting security arrangements in Pakistan for the Test series.

"It was certainly less than when we were there for the Asia Cup in July the year before and when we there for the one-day series only a month before (the attack) and probably different between Lahore (second Test) and (the first Test in) Karachi.”

"In Karachi we had the small trucks out the front and some behind but we also had a truck either side of us with guys standing up through the roof with a fixed machine gun on either side," Bayliss said.

"That wasn't there in Lahore so there was probably a little bit less in Lahore than in Karachi and definitely less than what was seen when we were there for the one-day series a month before," Bayliss added.