(b) For the purposes of this section the following  terms  shall  have
the following meanings:
  1.  to  "deface"  shall  include,  but  not  be limited to, to damage,
destroy, disfigure, erase, ruin, distort, spoil or otherwise change  the
external  appearance  of  an  object by the use of chalk, crayon, paint,
stain, ink or other similar material.
  2. to "alter" a traffic-control  signal  shall  include,  but  not  be
limited to, changing or attempting to change the signal indications of a
traffic-control  signal  by  use  of a traffic-control signal preemption
device.
  3. "traffic-control signal preemption device" shall  mean  any  device
designed  or  used to change or attempt to change the signal indications
of a traffic-control signal.
  (c) The presence in a vehicle of a traffic-control  signal  preemption
device  connected  to  a  power  source  and in an operable condition is
presumptive evidence of its use by any person  operating  such  vehicle.
Such presumption shall be rebutted by any credible and reliable evidence
which tends to show that such device was not in use.
Structure New York Laws
Article 24 - Traffic Signs, Signals and Markings
1110 - Obedience to and Required Traffic-Control Devices.
1111 - Traffic-Control Signal Indications.
1111-A - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-B - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-B*2 - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-B*3 - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-C - Owner Liability for Failure of Operator to Comply With Bus Lane Restrictions.
1111-D*2 - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-D*3 - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-E - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-F - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1111-D - Owner Liability for Failure of Operator to Comply With Traffic-Control Indications.
1112 - Pedestrian-Control Signal Indications.
1113 - Flashing Signal Indications.
1114 - Display of Unauthorized Signs, Signals, or Markings.