diff --git a/types/detective/detective-tests.ts b/types/detective/detective-tests.ts
new file mode 100644
index 0000000000..b0c176af03
--- /dev/null
+++ b/types/detective/detective-tests.ts
@@ -0,0 +1,16 @@
+import detective = require("detective");
+
+const opts: detective.Options = {
+    parse: {
+        sourceType: "module",
+        allowImportExportEverywhere: true
+    }
+};
+
+detective("content", opts).filter((x) => x && x.length > 0);
+
+const detectiveFunc: detective.Detective = detective;
+
+detectiveFunc.find("str").strings.forEach((dep) => {
+    const b: boolean = dep[0] === '.';
+});
diff --git a/types/detective/index.d.ts b/types/detective/index.d.ts
new file mode 100644
index 0000000000..771d88f40c
--- /dev/null
+++ b/types/detective/index.d.ts
@@ -0,0 +1,106 @@
+// Type definitions for detective 5.1
+// Project: https://github.com/browserify/detective
+// Definitions by: TeamworkGuy2 <https://github.com/TeamworkGuy2>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import * as acorn from "acorn";
+
+/**
+ * Find all calls to require() by walking the AST
+ */
+declare namespace detective {
+    interface Detective {
+        /**
+         * Give some source body src, return an array of all the require() calls with string arguments.
+         * The options parameter opts is passed along to detective.find().
+         */
+        (src: string, opts?: Options): string[];
+        /**
+         * Give some source body 'src', return 'found' DetectiveResults
+         */
+		find(src: string, opts?: Options): DetectiveResults;
+    }
+
+    interface Options {
+        /**
+         * specify a different function name instead of "require"
+         */
+        word?: string;
+        /**
+         * when true, populate found.nodes
+         */
+        nodes?: string;
+        /**
+         * a function returning whether an AST CallExpression node is a require call
+         */
+        isRequire?: (node: any) => boolean;
+        /**
+         * supply options directly to acorn with some support for esprima-style options range and loc
+         */
+        parse?: acorn.Options;
+        /**
+         * Indicates the ECMAScript version to parse. Must be either 3, 5, 6 (2015),
+         * 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial support). This influences
+         * support for strict mode, the set of reserved words, and support for new syntax features.
+         * Default is 9.
+         */
+        ecmaVersion?: string | number;
+
+        /**
+         * If false, using a reserved word will generate an error. Defaults to true for ecmaVersion 3,
+         * false for higher versions. When given the value "never", reserved words and keywords can
+         * also not be used as property names (as in Internet Explorer's old parser).
+         */
+        allowReserved?: boolean | "never";
+        /**
+         * By default, a return statement at the top level raises an error. Set this to true to accept such code.
+         */
+        allowReturnOutsideFunction?: boolean;
+        /**
+         * By default, import and export declarations can only appear at a program's top level.
+         * Setting this option to true allows them anywhere where a statement is allowed.
+         */
+        allowImportExportEverywhere?: boolean;
+        /**
+         * When this is enabled (off by default), if the code starts with the
+         * characters #! (as in a shellscript), the first line will be treated as a comment.
+         */
+        allowHashBang?: boolean;
+        /**
+         * When true, each node has a loc object attached with start and end subobjects, each of which
+         * contains the one-based line and zero-based column numbers in {line, column} form. Default is false.
+         */
+        locations?: boolean;
+        /**
+         * Nodes have their start and end characters offsets recorded in start and end properties
+         * (directly on the node, rather than the loc object, which holds line/column data.
+         * To also add a semi-standardized range property holding a [start, end] array with
+         * the same numbers, set the ranges option to true.
+         */
+        ranges?: string;
+        /**
+         * Indicate the mode the code should be parsed in. Can be either "script" or "module".
+         * This influences global strict mode and parsing of import and export declarations.
+         */
+        sourceType?: ("script" | "module");
+    }
+
+    interface DetectiveResults {
+        /**
+         * an array of each string found in a require()
+         */
+        strings: string[];
+        /**
+         * an array of each stringified expression found in a require() call
+         */
+        expressions: string[];
+        /**
+         * (when opts.nodes === true) - an array of AST nodes for each argument found in a require() call
+         */
+        nodes?: any[];
+    }
+}
+
+declare var detective: detective.Detective;
+
+export = detective;
diff --git a/types/detective/tsconfig.json b/types/detective/tsconfig.json
new file mode 100644
index 0000000000..49cdedb7fd
--- /dev/null
+++ b/types/detective/tsconfig.json
@@ -0,0 +1,24 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6",
+            "dom"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "detective-tests.ts"
+    ]
+}
\ No newline at end of file
diff --git a/types/detective/tslint.json b/types/detective/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/detective/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }