13-Mar-2010 Source: CBC
Calgary police helicopters are reported to have flown too close to other aircraft at least 11 times in the last four years, a CBC News investigation has found.
Read more: http://www.cbc.ca/canada/calgary/story/2010/03/05/calgary-police-helicopter-close-calls-air-planes.html#ixzz0i2WRCpqo