Best Investigation movies of 1970s

Actors : Chiang Chao, Chun Chao, Jackie Chen, Fu-fen Chao,
Directors : Hung-Chang Wang,

Two agents investigate missing ammunition from the Chinese military. Not a single shot is fired and it is all kung fu fighting start to finish.

Actors : Dai Ling, Ti Ai, Yen Ho, Hsi Tang,
Directors : Chi Lu,

Three females from a private detective agency are hired to find out what happened to a man who went missing while scuba diving.

Actors : Tomoko Saitô, Toshiyuki Nishida, Haruko Wanibuchi, Isao Natsuyagi,
Directors : Kôsei Saitô,

Famous detective Kindaichi investigates a series of mysterious murders revolving around a wealthy family.

Actors : Dae-yeob Lee, In-suk Ahn, Mu-ryong Choi, Hyeok Jang,
Directors : Tae-ho Seol,

Nan-hie is slowly coerced into a life of crime by her boyfriend, Park. She is trained in assassination techniques and sent to assassinate the head of the Special Investigation Unit. However...

Actors : Charles Heung, Fu-Wan Chin, Tina Chin-Fei, Ching Chen,
Directors : Tian-Lin Wang,

Returning home from being abroad, Tang Kin Ko discovers his family has been killed and his sister is missing. Tang is determined to find the killer and the disappearance of his sister, so ...

Actors : Corinne Carol, Julie Margo, Patrice Valota, Jacques Bouanich,
Directors : Philippe Monnier,

Corentin and Brichot investigate drug trafficking in Fort-de-France, Martinique.

Actors : Judy Morris, Jack Thompson, Shane Porteous, Jacqueline Kott,
Directors : Terry Ohlsson,

Sydney homicide detective Sergeant Scobie Malone and his offsider investigate the murder of Helga, whose corpse is found in the basement of the Sydney Opera House.

Actors : Sean McCann, Lawrence Benedict, Frank Moore, Céline Lomez,
Directors : Joyce Wieland,

A young woman marries a wealthy man she isn't in love with, but finds romance instead with the couples' painter friend.

Actors : Monica Gayle, L.G. Allard, Nona Carver, Linda Colpin,
Directors : Edward D. Wood Jr.,

A couple hire a detective to locate their missing daughter. He finds her in a "house of ill-repute."

Actors : Po Wang, Sung-il Shin, Dae-kun Lee,

The famous detective called 'the Hedgehog' finds himself the reluctant pawn of a North Korean spy who is trying to gain control of the Busan smuggling operations.

Actors : Andrés Mejuto, Carlos Romero Marchent, Orchidea de Santis, Peter Lee Lawrence,
Directors : Rafael Romero Marchent,

After the killing of his father, Danny Lom finds work in a village, and with the help of the sheriff's daughter, investigates the crime.

Actors : Rossella Bergamonti, Stelio Candelli, Patrizia Viotti, Veronika Korosec,
Directors : Leopoldo Savona,

A man finds his wife brutally murdered. He has no alibi so is instructed by his lawyer to go into hiding in an abandoned hotel. Strange occurrences start happening immediately.

Actors : Anthony Steel, Graham Stark, Fiona Richmond, Robin Askwith,
Directors : James Kenelm Clarke,

A soldier returning from World War II gets mixed up in a series of murders and mistaken identies regarding a cigarette lighter than affects all electric power.

Actors : Jun Fubuki, Yoshio Harada, Yûdai Ishiyama, Jun Hamamura,
Directors : Kazuo Kuroki,

In a melancholic seaside town, the bodies of two lovers who committed double suicide are found on the shore. A local reporter and the dead woman's pimp begin to investigate and find out that something very suspicious is going on.

Actors : Makoto Fujita, Eizô Kitamura, Junko Inagawa, Yoshio Harada,
Directors : Seijun Suzuki,

A police detective tries to investigate the mystery of a victim who was shot in the head, but no bullet was found.

Actors : Marthe Keller, Maurice Ronet, Karin Dor, Raymond Pellegrin,
Directors : Alfred Vohrer,

The yacht of millionaire Hellmann explodes in the Mediterranean Sea, with him and 8 men crew on board. Insurance agent Lucas investigates at the Cote D'Azur, because there's the suspicion ...

Actors : Marília Pêra, Edson França, Daniel Filho, José Wilker,
Directors : Alberto Salvá,

Call girl is found dead in her apartment and the police has a special interest to solve the case, since the investigator was a friend of the family's. But there are too many big names in the list of suspects.

Actors : Jiufeng Shi, Xiang Yan, Min Xu, Xinghuo Zhong,
Directors : Yaoting Shen,

A murder investigation in Donghai City leads to a larger conspiracy.

Actors : Prem Nath, Rekha, Shashi Kapoor, Bindu,
Directors : B.R. Ishara,

Concerned over the rising death of low-caste people in a remote town in India, the Central Bureau of Investigation assigns this task to Inspector Ravi Kapoor and instructs him to go ...

Actors : Shivaji Ganesan, Nagesh, Y.G. Mahendran, Chendamarai,
Directors : Vietnam Veetu Sundaram,

Emotional drama of two lawyers - uncle and nephew - Shivaji Ganesan in dual role. Uncle obsessed with legalities alone whereas the nephew intent on looking at the moralities too.