1LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Line Search Techniques

Developed as part of the National Emergency Services Curriculum Project

2LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Search Formations

• Hasty

• Line

• Wedge

3LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Hasty Team

• Used to check critical points of interest on site• No set layout• Normally specific, very-experienced personnel

assigned– Assistant Team Leader

– Communications

– Medic/First Aider

• A branch of a larger ground team in the field• Usually sent out as the initial, quick search

4LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Search Formations Continued

• Ground Team Members– Wilderness or Experienced Members (W)– General or Inexperienced Members (X)– Communications (C)– Medic/First Aider (+)– Navigator (N)– Assistant Team Leader (A)

• Ground Team Leader (L)

5LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Line Search

• Last Resort

• Detailed but Slow Search

Option 1: W X X X C L + X X X W

Option 2: W X X X C A + X X X W

6LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Wedge

• More Common

• Follows trails and paths typically

• Takes less time than line search

7LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Wedge Continued

Option 1: Option 2: N N

X X X X

X X X X X X

W C L + W W C A + W

L

8LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Search Patterns

• Parallel Sweep

• Expanding Square or Circle

• Contour

9LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Parallel Sweep

• Used to search specific gridded areas typically

• Normally use a Line Search formation

10LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Expanding Square or Circle

• Search small areas for missing person or clue• Normally use Hasty team

11LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Contour Search

• Searching by elevation– top to bottom not normally very feasible– statistically people get hurt climbing, not on

the way back down

• Normally looking for hikers along trails or on side of trails– Use the Wedge formation for this pattern

12LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Missing Person Search Clues

• Physical clues– Clothing or equipment– Smoke, by sight or smell– Food wrappers, trash or cigarette butts– Broken or disturbed brush or other signs of humans

passing through an area– Scavengers– Decomposition Odors

13LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Missing Person Search Clues Continued

• Recorded Clues– Trail registers– Sign-in logs

• People– Witnesses– Trained personnel like other searchers or Forest

Rangers– Family and Friends

14LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Missing Aircraft Search Clues

• Terrain Changes– Broken or disturbed trees and underbrush– Landslides– Horsetails caused by windblown snow or sand– Breaks in terrain– Blackened or discolored areas– Smoke– Presence of Scavengers

15LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Missing Aircraft Search Clues

• Smells– Smoke– Decomposition Odors– Fuel, oil or Brake Fluid

• Aircraft Signs– Pieces of wreckage (twisted metal, seats, etc.)– Fuel, oil, or brake fluid– Shiny metal in the distance

16LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Missing Aircraft Search Clues

• Signs of the Pilot/Passengers– Bits of clothing or personal effects– Trail markings– Footprints– Campfires– Garbage– Signals (Flares, Mirrors, etc.)

• Unusual events (Voices, creaking metal)

17LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Voice Commands

• Forward the Line

• Halt the Line

18LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Whistle Signals

• 1 short - Go

• 2 short - Stop

• 3 short - Danger, but keep moving unless you encounter a problem that you must stop for.

• 1 long - Assemble on the team leader

19LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

What do you do when you find a clue or the target?

• Halt in Place• Alert the Team Leader• Look for hazards in your area• Do not disturb anything• Brief the Team Leader on what you found• Mark the area if necessary to prevent damaging

of this or other potential clues (covered in later slide)

20LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Marking a Route

• Mark area searched for future teams or return leg• Determine color and type to use

– Surveyors tape (Recommended)

– Crepe Paper Streamers (Party supplies)

– Toilet paper for temporary marking (biodegradable)

• Place markings at eye level when possible• Slow the team down as necessary to leave a good

marking

21LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Suggested Route Markings

• 1 Strand = temporary edge of search pattern

• 2 Strands = outside edge of search pattern

• 3 Strands = clue, marked with:– Time & date– Clue number– Team ID

22LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

23LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Attraction Techniques

• Sound– Shouting the victim’s names– Honking vehicle horns– Using a Public Address System

You can “find” a victim by helping them find you!

•Light–Fires–Flashlights–Headlights

24LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Confinement Methods

• Road or Trail Blocks

• Look Outs

• Track Traps

• String Lines

• Line Markings or Trail Blazing

25LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Confinement Methods Continued

26LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Pros & Cons

+ Hasty Search most successful initial search

+ Line Search useful for finding very small objects

- Destroys clues

- Man intensive- Time intensive- Can be difficult to

manage

27LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Line Search Tasks

• Ground Team Member– O-0403: Employ Scanning Techniques while on foot– O-0404: Move as part of search line– O-0405: Communicate to other members of a search line– O-0406: Use Whistle Signals– O-0407: Conduct Attraction Techniques– O-0408: Identify Aircraft Search Clues– O-0409: Identify Missing Person Search Clues

28LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Line Search Tasks Continued

• Ground Team Member– O-0410: Mark a route– O-0411: Conduct individual actions on Locating a Clue– O-0412: Conduct Individual Actions on Find– O-0413: Participate in a Hasty Search

• Ground Team Leader– O-0415: Plan and Conduct Containment Operations– O-0416: Plan Search Line Operations

29LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

Line Search Tasks Continued

• Ground Team Leader– O-0417: Organize a Search Line– O-0418: Control a Search Line– O-0419: Plan and Organize a Hasty Search– O-0421: Direct Team Actions on Locating a Clue– O-0422: Direct Team Actions on Find

30LINESRCH..PPT

LAST REVISED: 9 JULY 2008 Citizens Serving Communities

QUESTIONS?

THINK SAFETY!