The NYPD is banning the blaring, celebratory airhorns that families and friends of police officers have been ... such as the use of air horns, posters, or other noise-making devices, can disrupt ...

When busses with shrilling horn sounds drove in Karnataka, a traffic police officer stopped them ... cop addressing unruly drivers with loud air horns. The footage recorded the policeman making ...

"Compressed air horns may produce a sound at 100 dB or higher," the letter ... It makes it hard on the ice as an official to police the game and ensure the players can actually hear you ...