WWI Shipwrecks in the Greek Seas

As part of the “Dive in Blue Growth” (Athens, October 16-18), Elpidia Katopodi presented “Cartographic Documentation and Proposed Criteria towards the Protection and Preservation of Wrecks from the Great War in the Greek Seas“. It demonstrated that a total of nearly 200 ships sank from 1912 to 1918,

the period that covers the Balkan and the First World War. Recognizing the need to protect shipwrecks as tangible evidence and preserve their memory as the intangible heritage of this historic time, the the Underwater Survey Team presents the following list, enriched with references to online sources describing the location, time and their causes.

NAME

FLAG

TYPE

PROPULSION

CAUSE

GRT

SWGS

BUILD

Fetich Boulen [+1912]

turkish

534

1871

Leitrim SS [+1913]

british

cargo

ατμός

κακοκαιρία

4284

547

1896

Antonie SS (+1915) (uboat.net)

french

cargo

ατμός

πυροβολισμός

2698

1910

Apollo SS (Scottier)(+1915)
(uboat.net)

british

cargo

ατμός

πυροβολισμός

3774

1905

Arabian SS (+1915) (uboat.net)

british

cargo

ατμός

πυροβολισμός

2744

512

1892

Burrsfield SS (+1915) (uboat.net)

british

cargo

ατμός

πυροβολισμός

4037

1902

Californian SS (+1915) (uboat.net)

british

υπερωκεάνιο

ατμός

τορπιλισμός

6223

521

1902

Cirene SS [U-39] (+1915)
(uboat.net)

italian

cargo

ατμός

πυροβολισμός

3236

524

1895

Clan MacFarlane SS (+1915)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

4823

526

1898

Craigston SS [+1915] (uboat.net)

british

cargo

ατμός

πυροβολισμός

2617

526

1911

H. C. Henry SS [+1915] (uboat.net)

canadian

δεξαμενόπλοιο

ατμός

τορπιλισμός

4219

539

1909

Hallamshire SS [+1915] (uboat.net)

british

cargo

ατμός

τορπιλισμός

4420

539

1907

Haydn SS (+1915) (uboat.net)

british

cargo

ατμός

προσάραξη

3923

1906

Helmsmuir SS (+1915) (uboat.net)

british

cargo

ατμός

4111

1913

Linkmoor SS [+1915] (uboat.net)

british

cargo

ατμός

πυροβολισμός

4306

1914

Lumina SS (+1915) (uboat.net)

british

δεξαμενόπλοιο

ατμός

πυροβολισμός

6218

1915

Marquette SS [U-35] (+1915)
(uboat.net)

belgian

υπερωκεάνιο

ατμός

τορπιλισμός

7057

552

1898

Natal Transport SS [U-34] (+1915)
(uboat.net)

british

cargo

ατμός

πυροβολισμός

4107

555

1910

Persia RMS (+1915) (uboat.net)

british

passenger

ατμός

τορπιλισμός

7974

1900

Provincia SS (+1915) (uboat.net)

french

passenger

ατμός

έκρηξη

3523

1902

Ramazan SS (+1915) (uboat.net)

british

cargo

ατμός

πυροβολισμός

3477

1905

Royal Edward HMS (+1915)
(uboat.net)

british

μεταγωγικό

ατμός

τορπιλισμός

11117

569

1908

Sailor Prince SS [U-37] (+1915)
(uboat.net)

british

cargo

ατμός

πυροβολισμός

3144

571

1901

Sainte Marguerite SS
(Sainte-Marquerite)(+1915)
(uboat.net)

french

cargo

ατμός

πυροβολισμός

3908

1913

Sir Richard Awdry SS (+1915)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

2234

1912

SS Calypso (+1914)

286

1870

SS Sailor Prince (+1915)
(uboat.net)

british

571

1901

SS Scilla (+1915) (uboat.net)

italian

573

1866

SV Tobia (+1915) (uboat.net)

italian

578

1912

Treneglos SS (III)(+1915)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

3886

1906

UB-3 (+1915) (uboat.net)

german

581

1919

Ville De La Ciotat SS (+1915)
(uboat.net)

french

υπερωκεάνιο

sail and steam

τορπιλισμός

6659

585

1892

Wacousta SS (+1915) (uboat.net)

norwegian

cargo

ατμός

πυροβολισμός

3521

1908

Woolwich SS (+1915) (uboat.net)

british

cargo

ατμός

πυροβολισμός

2936

1887

X-130 HMS (+1915) (uboat.net)

british

αποβατικό

πετρέλαιο

πυροβολισμός

160

1915

Arabia RMS (+1916) (uboat.net)

british

υπερωκεάνιο

ατμός

τορπιλισμός

7903

1898

Britannic HMHS [U-73] (+1916)
(uboat.net)

british

υπερωκεάνιο

ατμός

νάρκη

48158

517

1914

Burdigala SS (+1916) (uboat.net)

french

υπερωκεάνιο

ατμός

νάρκη

12480

519

1897

Butetown SS [+1916] (uboat.net)

british

cargo

ατμός

τορπιλισμός

3789

1905

Clacton SS [U-73] (+1916)
(uboat.net)

british

ναρκαλιευτικό

ατμός

τορπιλισμός

820

525

1905

Clifford SS (+1916) (uboat.net)

british

cargo

ατμός

πυροβολισμός

487

1904

Elax SS (+1916) (uboat.net)

british

δεξαμενόπλοιο

ατμός

τορπιλισμός

3980

1893

Gaulois [U-47] (+1916) (uboat.net)

french

πολεμικό

ατμός

τορπιλισμός

11300

535

1899

Ginette (+1916) (uboat.net)

french

περιπολικό

ατμός

νάρκη

272

1913

Huntsfall SS (+1916) (uboat.net)

british

cargo

ατμός

τορπιλισμός

4331

539

1906

John Pritchard SV (+1916)
(uboat.net)

british

cargo

sail

έκρηξη

118

Kiki Issaias SS (+1916) (uboat.net)

greek

cargo

ατμός

νάρκη

2993

297

1894

Llangorse SS (+1916) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3841

1900

Masunda SS (+1916) (uboat.net)

british

cargo

ατμός

πυροβολισμός

4952

1909

Minnewaska SS (III)[+1916]
(uboat.net)

british

cargo

ατμός

νάρκη

14317

553

1909

Moeris SS (+1916) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3409

553

1902

Norseman SS [+1916] (uboat.net)

british

υπερωκεάνιο

ατμός

προσάραξη

9542

555

1897

Persian SS (+1916)

british

cargo

ατμός

σύγκρουση

2734

1892

Polcevera SS (+1916)

italian

passenger/cargo

ατμός

τορπιλισμός

2239

562

1883

Primula HMS (+1916) (uboat.net)

british

ναρκαλιευτικό

ατμός

τορπιλισμός

1250

1915

Provence II (La Provence)(+1916)
(uboat.net)

french

υπερωκεάνιο

ατμός

τορπιλισμός

13753

1906

Remembrance (Lammeroo)[U-38]
(+1916)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

3660

568

1910

Spetzai SS (+1916) (uboat.net)

greek

cargo

ατμός

έκρηξη

1904

442

1891

Springwell SS (+1916) (uboat.net)

british

cargo

ατμός

τορπιλισμός

5593

1914

SS Margarita (+1916) (uboat.net)

329

1871

Stampalia SS (+1916) (uboat.net)

italian

υπερωκεάνιο

ατμός

τορπιλισμός

8999

1909

Virginia SS (+1916) (uboat.net)

british

cargo

ατμός

τορπιλισμός

4279

585

1901

Welsh Prince SS [UB-43] (+1916)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

4934

587

1903

A. S. 160 (+1917) (uboat.net)

greek

sail

20

Aghios Georgios SV (UC-74)(+1917)
(uboat.net)

greek

schooner

sail

161

1903

Agios Georgios SV (+1917)
(uboat.net)

greek

ιστιοφόρο

sail

897

1877

Agios Nicolaos SV (+1917)
(uboat.net)

greek

ιστιοφόρο

sail

προσάραξη

119

100

1907

Amiral Magon SS (+1917) (uboat.net)

french

υπερωκεάνιο

ατμός

τορπιλισμός

5566

1904

Amiral Olry SS (+1917) (uboat.net)

french

cargo

ατμός

τορπιλισμός

5567

1904

Annam SS (II)(+1917) (uboat.net)

french

υπερωκεάνιο

ατμός

τορπιλισμός

6075

1899

Antonio Sciesa SS (+1917)
(uboat.net)

italian

cargo

ατμός

τορπιλισμός

1905

1887

Arcadian SS [+1917] (uboat.net)

british

passenger

ατμός

τορπιλισμός

7945

513

1899

By George HMT (FY 253)(+1917)
(uboat.net)

british

καλωδιακό

ατμός

νάρκη

225

1914

Carroccio SS (+1917)

italian

cargo

ατμός

πυροβολισμός

1657

1901

Caterina (+1917) (uboat.net)

italian

sail

30

Cestrian SS (+1917) (uboat.net)

british

υπερωκεάνιο

ατμός

τορπιλισμός

8912

523

1896

Châteaurenault (+1917) (uboat.net)

french

cargo

ατμός

τορπιλισμός

8018

523

1898

Clan MacCorquodale SS (+1917)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

6517

1913

Cyfarthfa SS (+1917) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3014

1904

Dalton SS (+1917) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3486

529

1904

Ermine HMS (+1917)
(uboat.net)

british

passenger

ατμός

νάρκη

1777

531

1912

Essichia (+1917) (uboat.net)

greek

sail

30

250

Euston SS [U-14] (+1917)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

2841

532

1910

Evangelistria (U?)(+1917)
(uboat.net)

243

Evangelistria (UC-37)(+1917)
(uboat.net)

greek

sail

17

243

Firfield SS (+1917) (uboat.net)

british

cargo

ατμός

4029

534

1915

Garfield SS (+1917) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3838

1907

Georgian SS (+1917) (uboat.net)

british

cargo

sail and steam

τορπιλισμός

5088

535

1890

Grace SS (+1917) (uboat.net)

american

cargo

ατμός

τορπιλισμός

1861

1912

Ioannis (+1917) (uboat.net)

greek

sail

280

Ivernia RMS (+1917) (uboat.net)

british

υπερωκεάνιο

ατμός

τορπιλισμός

14278

541

1900

Jane Radcliffe SS (+1917)
(uboat.net)

british

cargo

ατμός

νάρκη

4074

543

1897

Kleopatra [UC-23] (+1917)
(uboat.net)

301

Livatho SS (+1917) (uboat.net)

ελληνική

cargo

ατμός

προσάραξη

2922

1890

Lord Salisbury HMT
(FY1212)(+1917)
(uboat.net)

british

ναρκαλιευτικό

ατμός

νάρκη

285

1911

Margit SS (+1917) (uboat.net)

british

cargo

ατμός

τορπιλισμός

2490

1903

Marigo SV (+1917) (uboat.net)

italian

sail

24

Marionga Goulandris SS [KuK U-14]
(+1917)
(uboat.net)

greek

cargo

ατμός

τορπιλισμός

3191

341

1905

Mashobra SS (+1917) (uboat.net)

british

υπερωκεάνιο

ατμός

τορπιλισμός

8173

1914

Mordenwood SS (+1917) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3125

1910

Nefeli SS (+1917) (uboat.net)

greek

cargo

ατμός

τορπιλισμός

3868

1912

Nestos SS (+1917) (uboat.net)

greek

cargo

ατμός

πυροβολισμός

4060

369

1914

New Zealand Transport SS [+1917]
(uboat.net)

british

cargo

ατμός

τορπιλισμός

4481

555

1913

Newmarket HMS [U-38] (+1917)
(uboat.net)

british

ναρκαλιευτικό

ατμός

833

555

1907

Niki SS (+1917) (uboat.net)

greek

passenger/cargo

ατμός

τορπιλισμός

511

369

1888

Nina SV (+1917) (uboat.net)

greek

sail

126

378

Ovid SS [UC-74] (+1917) (uboat.net)

british

cargo

ατμός

4159

557

1902

Panaghia (+1917) (uboat.net)

greek

sail

14

Panormitis (+1917) (uboat.net)

greek

sail

20

398

Parana SS (+1917) (uboat.net)

french

passenger/cargo

ατμός

τορπιλισμός

6248

559

1908

Pera SS (III)(+1917) (uboat.net)

british

cargo

ατμός

7635

1903

Princess Alberta SS (+1917)
(uboat.net)

british

passenger/cargo

sail and steam

νάρκη

1586

563

1905

Prophet SS [+1917] (uboat.net)

british

cargo

ατμός

τορπιλισμός

3230

563

1911

Redbreast SS (+1917) (uboat.net)

british

passenger/cargo

ατμός

τορπιλισμός

1313

1908

Repton SS [+1917] (uboat.net)

british

cargo

ατμός

τορπιλισμός

2881

568

1894

Roland SV (+1917) (uboat.net)

french

ιστιοφόρο

sail

703

1875

Semantha SS [UC-74] (+1917)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

2847

574

1899

Solstad SS (+1917) (uboat.net)

norwegian

cargo

ατμός

τορπιλισμός

4147

1916

SS Athinai (+1917)
(uboat.net)

120

1872

SS Eleni (+1917) (uboat.net)

202

1877

SS Kerkyra (or Cefira)(+1917)

296

SV Spiridon (+1917) (uboat.net)

444

Teakwood SS [+1917] (uboat.net)

british

δεξαμενόπλοιο

ατμός

τορπιλισμός

5815

1902

UC-38 [+1917] (uboat.net)

german

υποβρύχιο

πετρέλαιο και ηλεκτρισμός

αλλαγή βάθους

493

582

1916

Vasilefs Constantinos SS (+1917)
(uboat.net)

greek

cargo

ατμός

τορπιλισμός

4070

162

1913

Ville De Strasbourg SS (+1917)
(uboat.net)

french

cargo

ατμός

τορπιλισμός

2167

1882

Villemer SS (+1917) (uboat.net)

spanish

cargo

ατμός

τορπιλισμός

3627

1892

White Head SS [+1917] (uboat.net)

british

cargo

ατμός

τορπιλισμός

1172

587

1880

Yarra SS (+1917) (uboat.net)

french

υπερωκεάνιο

sail and steam

τορπιλισμός

4163

1883

121b (+1918) (uboat.net)

greek

sail

124

A56A (+1918) (uboat.net)

greek

sail

31

A59A (+1918) (uboat.net)

greek

sail

35

Adelphotis SV (+1918) (uboat.net)

greek

sail

26

Aghia Irene (+1918) (uboat.net)

greek

sail

16

Aghios Gerasimos (+1918)
(uboat.net)

greek

sail

πυροβολισμός

85

Aghios Johannes (UC-23)(+1918)
(uboat.net)

greek

sail

14

71

Aghios Johannis (U-33) (+1918)
(uboat.net)

greek

sail

τορπιλισμός

71

Aghios Nicolaos (U-27)(+1918)
(uboat.net)

greek

sail

13

Aghios Nicolaos (UC-37)(+1918)
(uboat.net)

greek

sail

20

Agia Trias SV (+1918) (uboat.net)

greek

sail

14

40

Agios Amma SV (+1918) (uboat.net)

greek

sail

16

Agios Constantinos SV (+1918)
(uboat.net)

greek

sail

14

73

Agios Dimitrios (+1918) (uboat.net)

greek

sail

40

65

Agios Dionysios (+1918) (uboat.net)

greek

sail

58

65

Agios Georgios (+1918) (uboat.net)

greek

sail

17

59

Agios Loukis (+1918) (uboat.net)

greek

sail

11

74

Agios Spiridion (+1918) (uboat.net)

greek

sail

58

110

1898

Agios Spiridion SV (+1918)
(uboat.net)

greek

sail

18

1886

Angeliki SV (+1918) (uboat.net)

greek

sail

30

21

AS19 (+1918) (uboat.net)

greek

sail

35

Aspasia (+1918) (uboat.net)

150

Bacchus SS (+1918) (uboat.net)

french

cargo

ατμός

τορπιλισμός

2045

1917

Biolleta (+1918) (uboat.net)

greek

sail

99

Birkhall SS [UC-23] (+1918)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

4541

516

1900

C57A (+1918) (uboat.net)

greek

sail

14

Chagres SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

5288

523

1912

Chatham SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3592

1904

Dragonos (+1918) (uboat.net)

greek

sail

0

Evangelistria (U-27)(+1918)
(uboat.net)

greek

sail

46

Evangelistria SV (U-27)(+1918)
(uboat.net)

greek

sail

20

Evangelistria SV (UC-23)(+1918)
(uboat.net)

greek

sail

24

Evangelistrios (UC-23)(+1918)
(uboat.net)

greek

sail

121

229

Evangtelistria [UC-37] (+1918)
(uboat.net)

greek

242

Floréal (Q-54)(+1918)

french

υποβρύχιο

ατμός και ηλεκτρισμός

σύγκρουση

398

1908

Georgios (+1918) (uboat.net)

greek

sail

29

Hagios Zion (+1918) (uboat.net)

greek

sail

4

Itria SS (+1918)

british

cargo

ατμός

σύγκρουση

5318

1901

Julia (+1918) (uboat.net)

greek

sail

48

Loch Naver HMT (Ad
No.1179)(+1918)
(uboat.net)

british

ναρκαλιευτικό

ατμός

νάρκη

216

1906

Louvain HMS[UC-22] (+1918)
(uboat.net)

british

passenger

ατμός

τορπιλισμός

1830

548

1897

Maria SS (+1918) (uboat.net)

spanish

cargo

ατμός

τορπιλισμός

2164

1881

Maria SV [UC-23] (+1918)
(uboat.net)

greek

sail

43

Marie Suzanne SS [UC-37] (+1918)
(uboat.net)

british

cargo

ατμός

3106

552

1898

Marigo SV [U27] (+1918) (uboat.net)

greek

sail

0

Marigo SV [UC-23] (+1918)
(uboat.net)

french

Mica SS (+1918) (uboat.net)

french

cargo

ατμός

998

1916

Moghrab SS (+1918)

belgian

cargo

ατμός

έκρηξη

996

1883

Nerissa II HMT (FY1793)(+1918)

british

ναρκαλιευτικό

ατμός

προσάραξη

173

1906

NN155A (+1918) (uboat.net)

greek

sail

30

Panaghia (+1918) (uboat.net)

greek

sail

0

394

Panaghia SV (+1918) (uboat.net)

greek

sail

12

395

Portaritissa SV (+1918) (uboat.net)

italian

sail

16

Porto Santo SS (+1918) (uboat.net)

portuguese

passenger/cargo

ατμός

νάρκη

2756

1895

Prof. Elias (+1918) (uboat.net)

greek

sail

5

Reventazon SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

4050

568

1906

Roxburgh SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

4630

569

1906

S275 (+1918) (uboat.net)

greek

sail

35

S804QU (+1918) (uboat.net)

greek

sail

53

S919A (+1918) (uboat.net)

greek

sail

80

San Nicola (U-27)(+1918)
(uboat.net)

italian sail

29

San Nicola (U-27)(+1918)
(uboat.net)

italian

sail

0

San Rito SS [U-37] (+1918)
(uboat.net)

british

cargo

ατμός

τορπιλισμός

3310

572

1916

SS Eleni (+1918)

201

1883

SS Panellenion (+1918)

397

1856

SS Roxburgh (+1918) (uboat.net)

british

569

1906

SS Waihemo (I)[UC-37] (+1918)
(uboat.net)

british

587

1904

SS165 (+1918) (uboat.net)

greek

sail

65

Taxiarchis SV (+1918) (uboat.net)

greek

sail

40

455

Termini SS (+1918) (uboat.net)

italian

passenger/cargo

ατμός

τορπιλισμός

1523

1906

Theologos SV (+1918) (uboat.net)

greek

sail

προσάραξη

103

265

1896

Tris Adelphi (+1918) (uboat.net)

greek

sail

53

467

Trocas SS [+1918] (uboat.net)

british

δεξαμενόπλοιο

ατμός

τορπιλισμός

4129

578

1893

Unidentified lighter (+1918)
(uboat.net)

russian

cargo

100

V108A (+1918) (uboat.net)

greek

sail

60

V135 (+1918) (uboat.net)

greek

sail

20

V214A (+1918) (uboat.net)

greek

sail

12

V62A (+1918) (uboat.net)

greek

sail

30

Ventmoor SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

3456

585

1900

Vicenza SS (+1918) (uboat.net)

italian

cargo

ατμός

τορπιλισμός

1833

1909

War Council SS (+1918) (uboat.net)

british

cargo

ατμός

τορπιλισμός

5875

1917

Maria Archis (+1918) (uboat.net)

greek

SV Nicolaos (+1917) (uboat.net)

greek

SS Angeliki [+1916] (uboat.net)

greek passenger ατμός τορπιλισμός 331 21 1863

EXPLANATION OF FIELDS

  • In the NAME field, names in Latin correspond to the wrecks included on the website www.wrecksite.eu.
  • The FLAG field describes the nationality of the ship.
  • The TYPE field describes the type of ship.
  • The PROPULSION field describes the ship’s propulsion.
  • The CAUSE field describes the cause of the sinking.
  • The GRT field describes the size of the ship (in Gross Registered Tonnage).
  • The SWGS (ShipWrecks in the Greek Seas) field refers to the corresponding page of Dounis’ First Volume (2000).
  • The BUILD field refers to the year of construction.

References

WRECK WRAK EPAVE WRACK PECIO [WWW Document], n.d. URL https://www.wrecksite.eu/wrecksite.aspx (accessed 7.12.19).
The U-boat Wars 1939-1945 (Kriegsmarine) and 1914-1918 (Kaiserliche Marine) and Allied Warships of WWII – uboat.net [WWW Document], n.d. URL https://uboat.net/ (accessed 7.12.19).
Dounis Ch., 2000. Shipwrecks in the Greek Sea. 1900-1950 (vol. A), Athens: FINATEC

Creative Commons License
The work entitled “Shipwrecks of WWI in the Greek Seas” by author Kimon Papadimitriou is available under theCreative Commons Attribution-Share Alike 4.0 International License. .
Based on a project at www.wreckhistory.com


Elpidia Katopodi is a graduate of the Department of Conservation of Antiquities and Artworks with a Masters in Naval and Underwater Archeology (Universidad de Cádiz, CEI. MAR). She is a scuba diver and has been involved in the research activities of the U.S.T. since 2019.


[*] Ross J. Robertson is an Australian who has lived in Greece for the past thirty years. He has a BSc (Biology) and is an EFL teacher. He is the co-owner of two private English Language Schools and instructs students studying for Michigan and Cambridge University English Language examinations. He has written various English Language Teaching books for the Hellenic American Union (Greece), Longman-Pearson (UK) and Macmillan Education (UK). He published his debut novel (fiction/humour) entitled ‘Spiked! Read Responsibly’ in 2016. Moreover, he has written several spec screenplays and a number of newspaper articles, including an extensive series on the 75th anniversary of the WWII Liberation of Greece. A keen AOW and Nitrox diver, he is also a shipwreck and research enthusiast and has written features for UK Diver Magazine, US Diver and the Australian newspaper, Neos Kosmos. Ross continues to combine his expertise in English with his love of storytelling and local WWII history to produce exciting materials.

Author: Kimon Papadimitriou

Kimon Papadimitriou, Dr Ing Rural and Surveying Engineering, is member of Laboratory Training Staff at the School of Rural and Surveying Engineering, Faculty of Engineering, Aristotle University of Thessaloniki. In 2015 he developed the PADI Underwater Survey Diver distinctive specialty training course. Subsequently, he was certified to teach the Wreck Detective training course.