Dr. Detlef Hass

Dr. Detlef Hass

Managing Partner for Germany

Email [email protected]​hoganlovells.com

Phone +49 89 290 12 215

Fax +49 89 290 12 222

LanguagesEnglish, German

Practice groupLitigation, Arbitration, and Employment

"Detlef Hass impresses market sources with his expert handling of sophisticated commercial disputes. His work spans a range of industries from technology to automotive."

Who's Who Legal Germany: Litigation, 2019

Detlef Hass is a commercial litigation partner, who has supported trials in more than 20 countries and led more than 100 hearings in Germany.

For the most complex B2B disputes, senior litigator Detlef will bring specific experience to the table. Widely recognized as a pioneer in the German market, Detlef and his team have developed best practice over the years how to approach high profile commercial conflicts with clients, judges and other parties involved.

He has supported trials in more than 20 countries in Europe, Latin America and Asia and tried more than 100 court hearings in Germany as lead trial lawyer. Detlef is known for translating complex facts to judges and is a market leader in automotive-related disputes and insolvency cases. Whether it is supply chain disruption, clawback in insolvency, white collar crime for businesses, asset tracing, anti-trust damages or post-M&A, Detlef will have dealt with similar cases in his more than 20 years of experience. He is at home in the automotive industry and technology industry.

Best Lawyers™ includes Detlef in the latest 2019 Edition of Best Lawyers™ in Germany for Bet-the-Company Litigation. He “impresses with his expert handling of sophisticated commercial disputes” (Who’s Who Legal, 2019) and is frequently recommended for commercial litigation and liability (JUVE Handbook, 2017/2018).

Clients perceive him as “an accomplished litigator, boasting expertise in insolvency, supply chain, cyber-crime and cartel disputes” (Chambers Europe, 2018), and regard him as a “leader in the field and strong litigator with a comprehensive knowledge of the German market” (Who’s Who Legal, 2018). 

Detlef heads the firms’ global industry group Diversified Industrials. He is admitted as Rechtsanwalt in Germany and as Solicitor in England and Wales. He is active in pro bono and citizenship matters.

Awards and recognitions


Dispute Resolution: Litigation (Germany)
Chambers Global


Dispute Resolution: Commercial Litigation
Legal 500 EMEA


Detlef Hass was included in the Best Lawyers™ 2019 edition in Germany for “Bet-the-Company Litigation”
Best Lawyers™


Frequently recommended lawyer for Commercial Litigation
JUVE handbook


Acritas Star
Acritas Stars Independently Rated Lawyers


Detlef Hass is ranked as one of the most highly regarded lawyers for Litigation in Germany
Who's who legal Germany: Litigation


Detlef Hass was included in the 2019 Best Lawyers™ 2019 edition in Germany for Litigation
Best Lawyers™


Recommended lawyer for commercial litigation and valued as "convincing and competent
Legal500 Germany

Education and admissions


University of Regensburg

University of Bonn

LMU Munich (Ludwig-Maximilians-Universität München)

Court admissions

England and Wales


Representative experience

Representing a German OEM in a highly publicized supply chain dispute with some of its suppliers and advising the client in terminating the supply relationships. 

Representing a leading chemical company in connection with the enforcement of claims arising from long-term supply contracts.

Representing Air Canada in Germany regarding a follow-on damages claim brought by forwarders and shippers in the context of the air cargo cartel.

Advising an international automotive supplier on a potential dispute about warranty claims and the following settlement negotiations.

Advising a globally acting automotive supplier on the pan-European recall of trailer brake components.

Advising a globally acting car parts supplier on various types of commercial disputes, amongst others, supplier chain disputes, warranty issues or post M&A disputes.

Representing a German leading OEM in supply chain disruption cases against suppliers in various European countries.

Representing the insolvency administrator of a globally acting semiconductor manufacturer regarding clawback claims in connection with the sale of a joint venture.

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