An element of the squad's success has been the consistent ability to identify, locate, and secure valuable testimony from previously unknown or hostile witnesses. The cold case concept A source book should be developed on hostile witnesses as well.
Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves.Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.n this case, the transverse polarization is associated with the direction of the shear stress and displacement in directions perpendicular to the propagation direction, while the longitudinal polarization describes compression of the solid and vibration along the direction of propagation.
Polarization is possible only when the direction of vibration is perpendicular to the direction of the wave travel, such is in light. In sound waves, the dire â¦ ction of vibration (compression) is the same direction as the direction of the travel of the sound wave, and therefore polarization is not possible.ecause transverse waves like electromagnetic waves (light) move  side to side when the travel, and we can limit the side-to-side  motion of a wave, and still allow the wave â¦ to pass.